wdenk | e28cf63 | 2004-03-14 15:20:55 +0000 | [diff] [blame] | 1 | |
| 2 | TODO: specify IDE i/f |
| 3 | |
| 4 | |
| 5 | =============================================================================== |
| 6 | C P U , M E M O R Y , I N / O U T C O M P O N E N T S |
| 7 | =============================================================================== |
| 8 | see also [1]-[5] |
| 9 | |
| 10 | CPU: "DNP_ESC1" |
| 11 | 32 bit NIOS for 50 MHz |
| 12 | 512 Byte for register file (30 levels) |
| 13 | with out instruction cache |
| 14 | with out data cache |
| 15 | 2 KByte On Chip ROM with GERMS boot monitor |
| 16 | with out On Chip RAM |
| 17 | MSTEP multiplier |
| 18 | no Debug Core |
| 19 | no On Chip Instrumentation (OCI) |
| 20 | |
| 21 | U-Boot CFG: CFG_NIOS_CPU_CLK = 50000000 |
| 22 | CFG_NIOS_CPU_ICACHE = (not present) |
| 23 | CFG_NIOS_CPU_DCACHE = (not present) |
| 24 | CFG_NIOS_CPU_REG_NUMS = 512 |
| 25 | CFG_NIOS_CPU_MUL = 0 |
| 26 | CFG_NIOS_CPU_MSTEP = 1 |
| 27 | CFG_NIOS_CPU_DBG_CORE = 0 |
| 28 | |
| 29 | IRQ: Nr. | used by |
| 30 | ------+-------------------------------------------------------- |
| 31 | 16 | TIMER0 | CFG_NIOS_CPU_TIMER0_IRQ = 16 |
| 32 | 17 | UART0 | CFG_NIOS_CPU_UART0_IRQ = 17 |
| 33 | 18 | UART1 | CFG_NIOS_CPU_UART1_IRQ = 18 |
| 34 | 20 | LAN91C111 | CFG_NIOS_CPU_LAN0_IRQ = |
| 35 | | PIO6 | CFG_NIOS_CPU_PIO6_IRQ = 20 |
| 36 | 25 | SPI0 | CFG_NIOS_CPU_SPI0_IRQ = 25 |
| 37 | 31 | PIO7 | CFG_NIOS_CPU_PIO7_IRQ = 31 |
| 38 | 32 | PIO8 | CFG_NIOS_CPU_PIO8_IRQ = 32 |
| 39 | 33 | PIO9 | CFG_NIOS_CPU_PIO9_IRQ = 33 |
| 40 | 34 | PIO10 | CFG_NIOS_CPU_PIO10_IRQ = 34 |
| 41 | 35 | PIO11 | CFG_NIOS_CPU_PIO11_IRQ = 35 |
| 42 | 36 | PIO12 | CFG_NIOS_CPU_PIO12_IRQ = |
| 43 | | IDE0 | CFG_NIOS_CPU_IDE0_IRQ = 36 |
| 44 | 37 | PIO13 | CFG_NIOS_CPU_PIO13_IRQ = |
| 45 | | IDE1 | CFG_NIOS_CPU_IDE1_IRQ = 37 |
| 46 | |
| 47 | MEMORY: 8 MByte Flash |
| 48 | 16 MByte SDRAM |
| 49 | |
| 50 | Timer: TIMER0: high priority programmable timer (IRQ16) |
| 51 | |
| 52 | U-Boot CFG: CFG_NIOS_CPU_TICK_TIMER = 0 |
| 53 | CFG_NIOS_CPU_USER_TIMER = (not present) |
| 54 | |
| 55 | PIO: Nr. | description |
| 56 | ------+-------------------------------------------------------- |
| 57 | PIO0 | PORTA: 8 in/outputs for general purpose usage |
| 58 | PIO1 | PORTB: 8 in/outputs for general purpose usage |
| 59 | PIO2 | PORTC: 4 in/outputs for general purpose usage |
| 60 | PIO3 | RCM: 1 input for RCM_EN# jumper (Req.Conf.Mon.) |
| 61 | PIO4 | WDTENA: 1 output to enable the on-board watchdog |
| 62 | PIO5 | WDTTRIG: 1 output to trigger the on-board watchdog |
| 63 | PIO6 | LAN0INT: 1 input for LAN91C111 irq input (IRQ20) |
| 64 | PIO7 | INT1: 1 input for general purpose irq (IRQ31) |
| 65 | PIO8 | INT2: 1 input for general purpose irq (IRQ32) |
| 66 | PIO9 | INT3: 1 input for general purpose irq (IRQ33) |
| 67 | PIO10| INT4: 1 input for general purpose irq (IRQ34) |
| 68 | PIO11| INT5: 1 input for general purpose irq (IRQ35) |
| 69 | PIO12| INT6: 1 input for general purpose irq (IRQ36) |
| 70 | | IDE0INT: (same) for IDE0 irq input |
| 71 | PIO13| INT7: 1 input for general purpose irq (IRQ37) |
| 72 | | IDE1INT: (same) for IDE1 irq input |
| 73 | |
| 74 | U-Boot CFG: CFG_NIOS_CPU_PORTA_PIO = 0 |
| 75 | CFG_NIOS_CPU_PORTB_PIO = 1 |
| 76 | CFG_NIOS_CPU_PORTC_PIO = 2 |
| 77 | CFG_NIOS_CPU_RCM_PIO = 3 |
| 78 | CFG_NIOS_CPU_WDTENA_PIO = 4 |
| 79 | CFG_NIOS_CPU_WDTTRIG_PIO = 5 |
| 80 | CFG_NIOS_CPU_LED_PIO = (not present) |
| 81 | |
| 82 | UART: UART0: fixed baudrate of 115200, fixed protocol 8N1, RTS/CTS (IRQ17) |
| 83 | UART1: fixed baudrate of 115200, fixed protocol 8N1, |
| 84 | without handshake RTS/CTS (IRQ18) |
| 85 | |
| 86 | SPI: SPI0: master capable, 1 slave selectable, 250kHz target clock, |
| 87 | 2 usec targets delay between slave select and clock, |
| 88 | data is transferred MSB-first / LSB-last (IRQ25) |
| 89 | |
| 90 | LAN: SMsC LAN91C111 with: |
| 91 | - without offset |
| 92 | - data bus width 16 bit (on-board hard wired at 32 bit bus) |
| 93 | - !!! 32 bit bus access --> each address * 2 !!! |
| 94 | |
| 95 | IDE: (TODO) |
| 96 | |
| 97 | |
| 98 | =============================================================================== |
| 99 | M E M O R Y M A P |
| 100 | =============================================================================== |
| 101 | |
| 102 | - - - - - - - - - - - external extension - - - - - - - - - - - - - - - - - - - |
| 103 | |
| 104 | 0x44000000 ---32-----------16|15------------0- |
| 105 | | | | \ |
| 106 | : (real size : : | |
| 107 | EXT3 (CS4) : and content : : > CFG_NIOS_CPU_CS3_SIZE |
| 108 | : unknown) : : | = 0x01000000 |
| 109 | | | | / |
| 110 | 0x43000000 ---32-----------16|15------------0- CFG_NIOS_CPU_CS3_BASE |
| 111 | | | | \ |
| 112 | : (real size : : | |
| 113 | EXT2 (CS3) : and content : : > CFG_NIOS_CPU_CS2_SIZE |
| 114 | : unknown) : : | = 0x01000000 |
| 115 | | | | / |
| 116 | 0x42000000 ---32-----------16|15------------0- CFG_NIOS_CPU_CS2_BASE |
| 117 | | | | \ |
| 118 | : (real size : : | |
| 119 | EXT1 (CS2) : and content : : > CFG_NIOS_CPU_CS1_SIZE |
| 120 | : unknown) : : | = 0x01000000 |
| 121 | | | | / |
| 122 | 0x41000000 ---32-----------16|15------------0- CFG_NIOS_CPU_CS1_BASE |
| 123 | | | | \ |
| 124 | : (real size : : | |
| 125 | EXT0 (CS1) : and content : : > CFG_NIOS_CPU_CS0_SIZE |
| 126 | : unknown) : : | = 0x01000000 |
| 127 | | | | / |
| 128 | 0x40000000 ---32-----------16|15------------0- CFG_NIOS_CPU_CS0_BASE |
| 129 | | | |
| 130 | : gap : |
| 131 | : : |
| 132 | |
| 133 | - - - - - - - - - - - external memory - - - - - - - - - - - - - - - - - - - |
| 134 | |
| 135 | : : |
| 136 | : gap : |
| 137 | | | |
| 138 | 0x03000000 ---32-----------16|15------------0- CFG_NIOS_CPU_STACK |
| 139 | | . | \ |
| 140 | | . | | (U-Boot run-time system) |
| 141 | | . | | |
| 142 | | . | > CFG_MONITOR_LEN |
| 143 | | . | | = 0x00040000 |
| 144 | | . | | |
| 145 | | . | / |
| 146 | 0x02fc0000 --+32-----------16|15------------0+ TEXT_BASE |
| 147 | | . | \ |
| 148 | | . | > CFG_MALLOC_LEN (heap) |
| 149 | | . | / |
| 150 | --+32-----------16|15------------0+ |
| 151 | | . | \ |
| 152 | | . | > CFG_GBL_DATA_SIZE (global) |
| 153 | | . | / |
| 154 | --+32-----------16|15------------0+ CFG_INIT_SP (u-boot stack) |
| 155 | | . | \ \ |
| 156 | | . | | | |
| 157 | | . | | > stack area |
| 158 | | . | | | |
| 159 | | . | | V |
| 160 | | . | | |
| 161 | | . | | |
| 162 | SDRAM | . | > CFG_NIOS_CPU_SDRAM_SIZE |
| 163 | | . | | = 0x01000000 |
| 164 | | . | | |
| 165 | 0x02000100 |- - - - - - - - - - - - - - - -+-|- |
| 166 | | . | | \ |
| 167 | | . | | | |
| 168 | | . | | > CFG_NIOS_CPU_VEC_SIZE |
| 169 | | . | | | = 0x00000100 |
| 170 | | | / / |
| 171 | 0x02000000 |- - - - - - - - - - - - - - - -+- - CFG_NIOS_CPU_VEC_BASE |
| 172 | 0x02000000 ---32-----------16|15------------0- CFG_NIOS_CPU_SDRAM_BASE |
| 173 | | | \ |
| 174 | : gap : > (space for 2nd Flash) |
| 175 | | | / |
| 176 | 0x01800000 ---32-----------16|15------------0- |
| 177 | | sector 127 | \ |
| 178 | + 0x7f0000 |- - - - - - - - - - - - - - - -| | |
| 179 | | : | | |
| 180 | Flash |- - - - : - - - -| > CFG_NIOS_CPU_FLASH_SIZE |
| 181 | | sector 1 : | | = 0x00800000 |
| 182 | + 0x010000 |- - - - - - - - - - - - - - - -| | |
| 183 | | sector 0 (size = 0x10000) | / |
| 184 | 0x01000000 ---8-------------4|3-------------0- CFG_NIOS_CPU_FLASH_BASE |
| 185 | | | |
| 186 | : gap : |
| 187 | : : |
| 188 | |
| 189 | - - - - - - - - - - - external i/o - - - - - - - - - - - - - - - - - - - |
| 190 | |
| 191 | : : |
| 192 | : gap : |
| 193 | | | |
| 194 | 0x00010020 ---32-----------16|15------------0- |
| 195 | | | \ |
| 196 | | register bank | | |
| 197 | | size = (real_size << 1) | | |
| 198 | | real_size = 0x10 | | |
| 199 | | +--------.---.---.--- | | |
| 200 | | | bank 0 \ 1 \ 2 \ 3 \ | | |
| 201 | | |---------------------------+ | | |
| 202 | LAN91C111 | | BANK | RESERVED | | > na_enet_size |
| 203 | | |- - - - - - -|- - - - - - -| | | = 0x00000020 |
| 204 | | | RPCR | MIR | | | |
| 205 | | |- - - - - - -|- - - - - - -| | | |
| 206 | | | COUNTER | RCR | | | |
| 207 | | |- - - - - - -|- - - - - - -| | | |
| 208 | | | EPH STATUS | TCR | | | |
| 209 | | +---------------------------+ | / |
| 210 | 0x00010000 ---32-----------16|15------------0- CFG_NIOS_CPU_LAN0_BASE |
| 211 | | | |
| 212 | : gap : |
| 213 | : : |
| 214 | |
| 215 | - - - - - - - - - - - on chip i/o - - - - - - - - - - - - - - - - - - - |
| 216 | |
| 217 | : : |
| 218 | : gap : |
| 219 | | | |
| 220 | 0x00001040 ---32-----------16|15------------0- |
| 221 | | | | \ |
| 222 | : : : | |
| 223 | IDE1 i/f : : : > 0x00000020 |
| 224 | [5] : : : | |
| 225 | | | | / |
| 226 | 0x00001020 ---32-----------16|15------------0- CFG_NIOS_CPU_IDE1 |
| 227 | | | | \ |
| 228 | : : : | |
| 229 | IDE0 i/f : : : > 0x00000020 |
| 230 | [5] : : : | |
| 231 | | | | / |
| 232 | 0x00001000 ---32-----------16|15------------0- CFG_NIOS_CPU_IDE0 |
| 233 | | | |
| 234 | : gap : |
| 235 | | | |
| 236 | 0x00000980 ---32-----------16|15------------0- |
| 237 | | edgecapture (1 bit) (rw) | \ |
| 238 | + 0x0c |- - - - - - - - - - - - - - - -| | |
| 239 | PIO13 | interruptmask (1 bit) (rw) | | |
| 240 | [3] + 0x08 |- - - - - - - - - - - - - - - -| > 0x00000010 |
| 241 | | (unused) | | |
| 242 | + 0x04 |- - - - - - - - - - - - - - - -| | |
| 243 | | data (1 bit) (ro) | / |
| 244 | 0x00000970 ---32-----------16|15------------0- CFG_NIOS_CPU_PIO13 |
| 245 | | edgecapture (1 bit) (rw) | \ |
| 246 | + 0x0c |- - - - - - - - - - - - - - - -| | |
| 247 | PIO12 | interruptmask (1 bit) (rw) | | |
| 248 | [3] + 0x08 |- - - - - - - - - - - - - - - -| > 0x00000010 |
| 249 | | (unused) | | |
| 250 | + 0x04 |- - - - - - - - - - - - - - - -| | |
| 251 | | data (1 bit) (ro) | / |
| 252 | 0x00000960 ---32-----------16|15------------0- CFG_NIOS_CPU_PIO12 |
| 253 | | edgecapture (1 bit) (rw) | \ |
| 254 | + 0x0c |- - - - - - - - - - - - - - - -| | |
| 255 | PIO11 | interruptmask (1 bit) (rw) | | |
| 256 | [3] + 0x08 |- - - - - - - - - - - - - - - -| > 0x00000010 |
| 257 | | (unused) | | |
| 258 | + 0x04 |- - - - - - - - - - - - - - - -| | |
| 259 | | data (1 bit) (ro) | / |
| 260 | 0x00000950 ---32-----------16|15------------0- CFG_NIOS_CPU_PIO11 |
| 261 | | edgecapture (1 bit) (rw) | \ |
| 262 | + 0x0c |- - - - - - - - - - - - - - - -| | |
| 263 | PIO10 | interruptmask (1 bit) (rw) | | |
| 264 | [3] + 0x08 |- - - - - - - - - - - - - - - -| > 0x00000010 |
| 265 | | (unused) | | |
| 266 | + 0x04 |- - - - - - - - - - - - - - - -| | |
| 267 | | data (1 bit) (ro) | / |
| 268 | 0x00000940 ---32-----------16|15------------0- CFG_NIOS_CPU_PIO10 |
| 269 | | edgecapture (1 bit) (rw) | \ |
| 270 | + 0x0c |- - - - - - - - - - - - - - - -| | |
| 271 | PIO9 | interruptmask (1 bit) (rw) | | |
| 272 | [3] + 0x08 |- - - - - - - - - - - - - - - -| > 0x00000010 |
| 273 | | (unused) | | |
| 274 | + 0x04 |- - - - - - - - - - - - - - - -| | |
| 275 | | data (1 bit) (ro) | / |
| 276 | 0x00000930 ---32-----------16|15------------0- CFG_NIOS_CPU_PIO9 |
| 277 | | edgecapture (1 bit) (rw) | \ |
| 278 | + 0x0c |- - - - - - - - - - - - - - - -| | |
| 279 | PIO8 | interruptmask (1 bit) (rw) | | |
| 280 | [3] + 0x08 |- - - - - - - - - - - - - - - -| > 0x00000010 |
| 281 | | (unused) | | |
| 282 | + 0x04 |- - - - - - - - - - - - - - - -| | |
| 283 | | data (1 bit) (ro) | / |
| 284 | 0x00000920 ---32-----------16|15------------0- CFG_NIOS_CPU_PIO8 |
| 285 | | edgecapture (1 bit) (rw) | \ |
| 286 | + 0x0c |- - - - - - - - - - - - - - - -| | |
| 287 | PIO7 | interruptmask (1 bit) (rw) | | |
| 288 | [3] + 0x08 |- - - - - - - - - - - - - - - -| > 0x00000010 |
| 289 | | (unused) | | |
| 290 | + 0x04 |- - - - - - - - - - - - - - - -| | |
| 291 | | data (1 bit) (ro) | / |
| 292 | 0x00000910 ---32-----------16|15------------0- CFG_NIOS_CPU_PIO7 |
| 293 | | edgecapture (1 bit) (rw) | \ |
| 294 | + 0x0c |- - - - - - - - - - - - - - - -| | |
| 295 | PIO6 | interruptmask (1 bit) (rw) | | |
| 296 | [3] + 0x08 |- - - - - - - - - - - - - - - -| > 0x00000010 |
| 297 | | (unused) | | |
| 298 | + 0x04 |- - - - - - - - - - - - - - - -| | |
| 299 | | data (1 bit) (ro) | / |
| 300 | 0x00000900 ---32-----------16|15------------0- CFG_NIOS_CPU_PIO6 |
| 301 | | | |
| 302 | : gap : |
| 303 | | | |
| 304 | 0x000008e0 ---32-----------16|15------------0- |
| 305 | | (unused) | \ |
| 306 | + 0x1c |- - - - - - - - - - - - - - - -| | |
| 307 | | endofpacket (16 bit) (rw) | | |
| 308 | + 0x18 |- - - - - - - - - - - - - - - -| | |
| 309 | | slaveselect (1 bit) (rw) | | |
| 310 | + 0x14 |- - - - - - - - - - - - - - - -| | |
| 311 | SPI0 | (reserved) | | |
| 312 | [4] + 0x10 |- - - - - - - - - - - - - - - -| > 0x00000020 |
| 313 | | control (11 bit) (rw) | | |
| 314 | + 0x0c |- - - - - - - - - - - - - - - -| | |
| 315 | | status (9 bit) (rw) | | |
| 316 | + 0x08 |- - - - - - - - - - - - - - - -| | |
| 317 | | txdata (16 bit) (wo) | | |
| 318 | + 0x04 |- - - - - - - - - - - - - - - -| | |
| 319 | | rxdata (16 bit) (ro) | / |
| 320 | 0x000008c0 ---32-----------16|15------------0- CFG_NIOS_CPU_SPI0 |
| 321 | | (unused) | \ |
| 322 | + 0x0c |- - - - - - - - - - - - - - - -| | |
| 323 | PIO5 | (unused) | | |
| 324 | [3] + 0x08 |- - - - - - - - - - - - - - - -| > 0x00000010 |
| 325 | | (unused) | | |
| 326 | + 0x04 |- - - - - - - - - - - - - - - -| | |
| 327 | | data (1 bit) (wo) | / |
| 328 | 0x000008b0 ---32-----------16|15------------0- CFG_NIOS_CPU_PIO5 |
| 329 | | (unused) | \ |
| 330 | + 0x0c |- - - - - - - - - - - - - - - -| | |
| 331 | PIO4 | (unused) | | |
| 332 | [3] + 0x08 |- - - - - - - - - - - - - - - -| > 0x00000010 |
| 333 | | (unused) | | |
| 334 | + 0x04 |- - - - - - - - - - - - - - - -| | |
| 335 | | data (1 bit) (wo) | / |
| 336 | 0x000008a0 ---32-----------16|15------------0- CFG_NIOS_CPU_PIO4 |
| 337 | | (unused) | \ |
| 338 | + 0x0c |- - - - - - - - - - - - - - - -| | |
| 339 | PIO3 | (unused) | | |
| 340 | [3] + 0x08 |- - - - - - - - - - - - - - - -| > 0x00000010 |
| 341 | | (unused) | | |
| 342 | + 0x04 |- - - - - - - - - - - - - - - -| | |
| 343 | | data (1 bit) (ro) | / |
| 344 | 0x00000890 ---32-----------16|15------------0- CFG_NIOS_CPU_PIO3 |
| 345 | | (unused) | \ |
| 346 | + 0x0c |- - - - - - - - - - - - - - - -| | |
| 347 | PIO2 | (unused) | | |
| 348 | [3] + 0x08 |- - - - - - - - - - - - - - - -| > 0x00000010 |
| 349 | | direction (4 bit) (rw) | | |
| 350 | + 0x04 |- - - - - - - - - - - - - - - -| | |
| 351 | | data (4 bit) (rw) | / |
| 352 | 0x00000880 ---32-----------16|15------------0- CFG_NIOS_CPU_PIO2 |
| 353 | | (unused) | \ |
| 354 | + 0x0c |- - - - - - - - - - - - - - - -| | |
| 355 | PIO1 | (unused) | | |
| 356 | [3] + 0x08 |- - - - - - - - - - - - - - - -| > 0x00000010 |
| 357 | | direction (8 bit) (rw) | | |
| 358 | + 0x04 |- - - - - - - - - - - - - - - -| | |
| 359 | | data (8 bit) (rw) | / |
| 360 | 0x00000870 ---32-----------16|15------------0- CFG_NIOS_CPU_PIO1 |
| 361 | | (unused) | \ |
| 362 | + 0x0c |- - - - - - - - - - - - - - - -| | |
| 363 | PIO0 | (unused) | | |
| 364 | [3] + 0x08 |- - - - - - - - - - - - - - - -| > 0x00000010 |
| 365 | | direction (8 bit) (rw) | | |
| 366 | + 0x04 |- - - - - - - - - - - - - - - -| | |
| 367 | | data (8 bit) (rw) | / |
| 368 | 0x00000860 ---32-----------16|15------------0- CFG_NIOS_CPU_PIO0 |
| 369 | | (unused) | \ |
| 370 | + 0x1c |- - - - - - - - - - - - - - - -| | |
| 371 | | (unused) | | |
| 372 | + 0x18 |- - - - - - - - - - - - - - - -| | |
| 373 | | snaph (16 bit) (rw) | | |
| 374 | + 0x14 |- - - - - - - - - - - - - - - -| | |
| 375 | TIMER0 | snapl (16 bit) (rw) | | |
| 376 | [2] + 0x10 |- - - - - - - - - - - - - - - -| > 0x00000020 |
| 377 | | periodh (16 bit) (rw) | | |
| 378 | + 0x0c |- - - - - - - - - - - - - - - -| | |
| 379 | | periodl (16 bit) (rw) | | |
| 380 | + 0x08 |- - - - - - - - - - - - - - - -| | |
| 381 | | control (4 bit) (rw) | | |
| 382 | + 0x04 |- - - - - - - - - - - - - - - -| | |
| 383 | | status (2 bit) (rw) | / |
| 384 | 0x00000840 ---32-----------16|15------------0- CFG_NIOS_CPU_TIMER0 |
| 385 | | (unused) | \ |
| 386 | + 0x1c |- - - - - - - - - - - - - - - -| | |
| 387 | | (unused) | | |
| 388 | + 0x18 |- - - - - - - - - - - - - - - -| | |
| 389 | | (unused) | | |
| 390 | + 0x14 |- - - - - - - - - - - - - - - -| | |
| 391 | UART1 | (unused) | > 0x00000020 |
| 392 | [1] + 0x10 |- - - - - - - - - - - - - - - -| | |
| 393 | | control (10 bit) (rw) | | |
| 394 | + 0x0c |- - - - - - - - - - - - - - - -| | |
| 395 | | status (10 bit) (rw) | | |
| 396 | + 0x08 |- - - - - - - - - - - - - - - -| | |
| 397 | | txdata (8 bit) (wo) | | |
| 398 | + 0x04 |- - - - - - - - - - - - - - - -| | |
| 399 | | rxdata (8 bit) (ro) | / |
| 400 | 0x00000820 ---32-----------16|15------------0- CFG_NIOS_CPU_UART1 |
| 401 | | (unused) | \ |
| 402 | + 0x1c |- - - - - - - - - - - - - - - -| | |
| 403 | | (unused) | | |
| 404 | + 0x18 |- - - - - - - - - - - - - - - -| | |
| 405 | | (unused) | | |
| 406 | + 0x14 |- - - - - - - - - - - - - - - -| | |
| 407 | UART0 | (unused) | > 0x00000020 |
| 408 | [1] + 0x10 |- - - - - - - - - - - - - - - -| | |
| 409 | | control (10 bit) (rw) | | |
| 410 | + 0x0c |- - - - - - - - - - - - - - - -| | |
| 411 | | status (10 bit) (rw) | | |
| 412 | + 0x08 |- - - - - - - - - - - - - - - -| | |
| 413 | | txdata (8 bit) (wo) | | |
| 414 | + 0x04 |- - - - - - - - - - - - - - - -| | |
| 415 | | rxdata (8 bit) (ro) | / |
| 416 | 0x00000800 ---32-----------16|15------------0- CFG_NIOS_CPU_UART0 |
| 417 | |
| 418 | - - - - - - - - - - - on chip memory 1 - - - - - - - - - - - |
| 419 | |
| 420 | 0x00000800 ---32-----------16|15------------0- |
| 421 | | : | \ |
| 422 | | : | | |
| 423 | GERMS | : | > CFG_NIOS_CPU_ROM_SIZE |
| 424 | | : | | = 0x00000800 |
| 425 | | : | / |
| 426 | 0x00000000 |- - - - - - - - - - - - - - - -+- - CFG_NIOS_CPU_RST_VECT |
| 427 | 0x00000000 ---32-----------16|15------------0- CFG_NIOS_CPU_ROM_BASE |
| 428 | |
| 429 | |
| 430 | =============================================================================== |
| 431 | F L A S H M E M O R Y A L L O C A T I O N |
| 432 | =============================================================================== |
| 433 | |
| 434 | 0x01800000 ---8-------------4|3-------------0- |
| 435 | | : | \ |
| 436 | | : | | |
| 437 | | : | > 6 MByte ROM FS |
| 438 | | : | | |
| 439 | | : | / |
| 440 | 0x01200000 --+- - - - - - - -:- - - - - - - -+- - file system image(s) |
| 441 | | : | \ |
| 442 | | : | | |
| 443 | | : | > 1728 kByte ucLinux |
| 444 | | : | | |
| 445 | | : | / |
| 446 | 0x01050000 --+- - - - - - - -:- - - - - - - -+- - os image(s) |
| 447 | | : | \ |
| 448 | 0x01040000 --+- - - - - - - -:- - - - - - - -+-|- u-boot environment |
| 449 | | : | | |
| 450 | | : | > 320 kByte U-Boot |
| 451 | | : | | |
| 452 | | : | | |
| 453 | | : | / |
| 454 | 0x01000000 --+- - - - - - - -:- - - - - - - -+- - u-boot _start() |
| 455 | 0x01000000 ---8-------------4|3-------------0- |
| 456 | |
| 457 | |
| 458 | =============================================================================== |
| 459 | R E F E R E N C E S |
| 460 | =============================================================================== |
| 461 | [1] http://www.altera.com/literature/ds/ds_nios_uart.pdf |
| 462 | [2] http://www.altera.com/literature/ds/ds_nios_timer.pdf |
| 463 | [3] http://www.altera.com/literature/ds/ds_nios_pio.pdf |
| 464 | [4] http://www.altera.com/literature/ds/ds_nios_spi.pdf |
| 465 | [5] http://www.t13.org/index.html |
| 466 | |
| 467 | |
| 468 | =============================================================================== |
| 469 | Stephan Linz <linz@li-pro.net> |