wdenk | 3be717f | 2004-01-03 19:43:48 +0000 | [diff] [blame] | 1 | |
| 2 | TODO: specify IDE i/f |
| 3 | specify OCI |
| 4 | |
| 5 | |
| 6 | =============================================================================== |
| 7 | C P U , M E M O R Y , I N / O U T C O M P O N E N T S |
| 8 | =============================================================================== |
| 9 | see also [1]-[5] |
| 10 | |
| 11 | CPU: "standard_32" |
| 12 | 32 bit NIOS for 50 MHz |
| 13 | 256 Byte for register file (15 levels) |
| 14 | 4 KByte instruction cache (4 bytes in each cache line) |
| 15 | 4 KByte data cache (4 bytes in each cache line) |
| 16 | 2 KByte On Chip ROM with GERMS boot monitor |
| 17 | 64 KByte On Chip RAM |
| 18 | MSTEP multiplier |
| 19 | no Debug Core |
| 20 | On Chip Instrumentation (OCI) enabled |
| 21 | |
| 22 | U-Boot CFG: CFG_NIOS_CPU_CLK = 50000000 |
| 23 | CFG_NIOS_CPU_ICACHE = 4096 |
| 24 | CFG_NIOS_CPU_DCACHE = 4096 |
| 25 | CFG_NIOS_CPU_REG_NUMS = 256 |
| 26 | CFG_NIOS_CPU_MUL = 0 |
| 27 | CFG_NIOS_CPU_MSTEP = 1 |
| 28 | CFG_NIOS_CPU_DBG_CORE = 0 |
| 29 | |
| 30 | OCI: (TODO) |
| 31 | |
| 32 | IRQ: Nr. | used by |
| 33 | ------+-------------------------------------------------------- |
| 34 | 16 | TIMER0 | CFG_NIOS_CPU_TIMER0_IRQ = 16 |
| 35 | 25 | UART0 | CFG_NIOS_CPU_UART0_IRQ = 25 |
| 36 | 30 | LAN91C111 | CFG_NIOS_CPU_LAN0_IRQ = 30 |
| 37 | 35 | PIO5 | CFG_NIOS_CPU_PIO5_IRQ = 35 |
| 38 | 40 | PIO0 | CFG_NIOS_CPU_PIO0_IRQ = 40 |
| 39 | 50 | TIMER1 | CFG_NIOS_CPU_TIMER1_IRQ = 50 |
| 40 | |
| 41 | MEMORY: 8 MByte Flash |
| 42 | 1 MByte SRAM |
| 43 | 16 MByte SDRAM |
| 44 | |
| 45 | Timer: TIMER0: high priority programmable timer (IRQ16) |
| 46 | TIMER1: low priority fixed timer for 10 ms @ 50 MHz (IRQ50) |
| 47 | |
| 48 | U-Boot CFG: CFG_NIOS_CPU_TICK_TIMER = 1 |
| 49 | CFG_NIOS_CPU_USER_TIMER = 0 |
| 50 | |
| 51 | PIO: Nr. | description |
| 52 | ------+-------------------------------------------------------- |
| 53 | PIO0 | BUTTON: 4 inputs for user push buttons (IRQ40) |
| 54 | PIO1 | LCD: 11 in/outputs for ASCII LCD |
| 55 | PIO2 | LED: 8 outputs for user LEDs |
| 56 | PIO3 | SEVENSEG: 16 outputs for user seven segment display |
| 57 | PIO4 | RECONF: 1 in/output for . . . . . . . . . . . . |
| 58 | PIO5 | CFPRESENT: 1 input for CF present event (IRQ35) |
| 59 | PIO6 | CFPOWER: 1 output to controll CF power supply |
| 60 | PIO7 | CFATASEL: 1 output to controll CF ATA card select |
| 61 | |
| 62 | U-Boot CFG: CFG_NIOS_CPU_BUTTON_PIO = 0 |
| 63 | CFG_NIOS_CPU_LCD_PIO = 1 |
| 64 | CFG_NIOS_CPU_LED_PIO = 2 |
| 65 | CFG_NIOS_CPU_SEVENSEG_PIO = 3 |
| 66 | CFG_NIOS_CPU_RECONF_PIO = 4 |
| 67 | CFG_NIOS_CPU_CFPRESENT_PIO = 5 |
| 68 | CFG_NIOS_CPU_CFPOWER_PIO = 6 |
| 69 | CFG_NIOS_CPU_CFATASEL_PIO = 7 |
| 70 | |
| 71 | UART: UART0: fixed baudrate of 115200, fixed protocol 8N1, |
| 72 | without handshake RTS/CTS (IRQ25) |
| 73 | |
| 74 | LAN: SMsC LAN91C111 with: |
| 75 | - offset 0x300 (LAN91C111_REGISTERS_OFFSET) |
| 76 | - data bus width 32 bit (LAN91C111_DATA_BUS_WIDTH) |
| 77 | |
| 78 | IDE: (TODO) |
| 79 | |
| 80 | |
| 81 | =============================================================================== |
| 82 | M E M O R Y M A P |
| 83 | =============================================================================== |
| 84 | |
| 85 | - - - - - - - - - - - external memory 2 - - - - - - - - - - - - - - - - - - - |
| 86 | |
| 87 | 0x02000000 ---32-----------16|15------------0- |
| 88 | | : | \ |
| 89 | | : | | |
| 90 | SDRAM | : | > CFG_NIOS_CPU_SRAM_SIZE |
| 91 | | : | | = 0x01000000 |
| 92 | | : | / |
| 93 | 0x01000000 ---32-----------16|15------------0- CFG_NIOS_CPU_SRAM_BASE |
| 94 | | | |
| 95 | : gap : |
| 96 | : : |
| 97 | |
| 98 | - - - - - - - - - - - on chip i/o - - - - - - - - - - - - - - - - - - - |
| 99 | |
| 100 | : : |
| 101 | : gap : |
| 102 | | | |
| 103 | 0x00920a80 ---32-----------16|15------------0- |
| 104 | | | | \ |
| 105 | : (real size : : | |
| 106 | IDE i/f : and content : : > 0x00000080 |
| 107 | [5] : unknown) : : | |
| 108 | | | | / |
| 109 | 0x00920a00 ---32-----------16|15------------0- CFG_NIOS_CPU_IDE0 |
| 110 | | (unused) | \ |
| 111 | + 0x1c |- - - - - - - - - - - - - - - -| | |
| 112 | | (unused) | | |
| 113 | + 0x18 |- - - - - - - - - - - - - - - -| | |
| 114 | | (unused) | | |
| 115 | + 0x14 |- - - - - - - - - - - - - - - -| | |
| 116 | TIMER1 | (unused) | | |
| 117 | [3] + 0x10 |- - - - - - - - - - - - - - - -| > 0x00000020 |
| 118 | | (unused) | | |
| 119 | + 0x0c |- - - - - - - - - - - - - - - -| | |
| 120 | | (unused) | | |
| 121 | + 0x08 |- - - - - - - - - - - - - - - -| | |
| 122 | | control (1 bit) (rw) | | |
| 123 | + 0x04 |- - - - - - - - - - - - - - - -| | |
| 124 | | status (2 bit) (rw) | / |
| 125 | 0x009209e0 ---32-----------16|15------------0- CFG_NIOS_CPU_TIMER1 |
| 126 | | (unused) | \ |
| 127 | + 0x0c |- - - - - - - - - - - - - - - -| | |
| 128 | PIO7 | (unused) | | |
| 129 | [4] + 0x08 |- - - - - - - - - - - - - - - -| > 0x00000010 |
| 130 | | (unused) | | |
| 131 | + 0x04 |- - - - - - - - - - - - - - - -| | |
| 132 | | data (1 bit) (wo) | / |
| 133 | 0x009209d0 ---32-----------16|15------------0- CFG_NIOS_CPU_PIO7 |
| 134 | | (unused) | \ |
| 135 | + 0x0c |- - - - - - - - - - - - - - - -| | |
| 136 | PIO6 | (unused) | | |
| 137 | [4] + 0x08 |- - - - - - - - - - - - - - - -| > 0x00000010 |
| 138 | | (unused) | | |
| 139 | + 0x04 |- - - - - - - - - - - - - - - -| | |
| 140 | | data (1 bit) (wo) | / |
| 141 | 0x009209c0 ---32-----------16|15------------0- CFG_NIOS_CPU_PIO6 |
| 142 | | edgecapture (1 bit) (rw) | \ |
| 143 | + 0x0c |- - - - - - - - - - - - - - - -| | |
| 144 | PIO5 | interruptmask (1 bit) (rw) | | |
| 145 | [4] + 0x08 |- - - - - - - - - - - - - - - -| > 0x00000010 |
| 146 | | (unused) | | |
| 147 | + 0x04 |- - - - - - - - - - - - - - - -| | |
| 148 | | data (1 bit) (ro) | / |
| 149 | 0x009209b0 ---32-----------16|15------------0- CFG_NIOS_CPU_PIO5 |
| 150 | | (unused) | \ |
| 151 | + 0x0c |- - - - - - - - - - - - - - - -| | |
| 152 | PIO4 | (unused) | | |
| 153 | [4] + 0x08 |- - - - - - - - - - - - - - - -| > 0x00000010 |
| 154 | | direction (1 bit) (rw) | | |
| 155 | + 0x04 |- - - - - - - - - - - - - - - -| | |
| 156 | | data (1 bit) (rw) | / |
| 157 | 0x009209a0 ---32-----------16|15------------0- CFG_NIOS_CPU_PIO4 |
| 158 | | (unused) | \ |
| 159 | + 0x0c |- - - - - - - - - - - - - - - -| | |
| 160 | PIO3 | (unused) | | |
| 161 | [4] + 0x08 |- - - - - - - - - - - - - - - -| > 0x00000010 |
| 162 | | (unused) | | |
| 163 | + 0x04 |- - - - - - - - - - - - - - - -| | |
| 164 | | data (16 bit) (wo) | / |
| 165 | 0x00920990 ---32-----------16|15------------0- CFG_NIOS_CPU_PIO3 |
| 166 | | (unused) | \ |
| 167 | + 0x0c |- - - - - - - - - - - - - - - -| | |
| 168 | PIO2 | (unused) | | |
| 169 | [4] + 0x08 |- - - - - - - - - - - - - - - -| > 0x00000010 |
| 170 | | (unused) | | |
| 171 | + 0x04 |- - - - - - - - - - - - - - - -| | |
| 172 | | data (8 bit) (wo) | / |
| 173 | 0x00920980 ---32-----------16|15------------0- CFG_NIOS_CPU_PIO2 |
| 174 | | (unused) | \ |
| 175 | + 0x0c |- - - - - - - - - - - - - - - -| | |
| 176 | PIO1 | (unused) | | |
| 177 | [4] + 0x08 |- - - - - - - - - - - - - - - -| > 0x00000010 |
| 178 | | direction (11 bit) (rw) | | |
| 179 | + 0x04 |- - - - - - - - - - - - - - - -| | |
| 180 | | data (11 bit) (rw) | / |
| 181 | 0x00920970 ---32-----------16|15------------0- CFG_NIOS_CPU_PIO1 |
| 182 | | edgecapture (4 bit) (rw) | \ |
| 183 | + 0x0c |- - - - - - - - - - - - - - - -| | |
| 184 | PIO0 | interruptmask (4 bit) (rw) | | |
| 185 | [4] + 0x08 |- - - - - - - - - - - - - - - -| > 0x00000010 |
| 186 | | (unused) | | |
| 187 | + 0x04 |- - - - - - - - - - - - - - - -| | |
| 188 | | data (4 bit) (ro) | / |
| 189 | 0x00920960 ---32-----------16|15------------0- CFG_NIOS_CPU_PIO0 |
| 190 | | (unused) | \ |
| 191 | + 0x1c |- - - - - - - - - - - - - - - -| | |
| 192 | | (unused) | | |
| 193 | + 0x18 |- - - - - - - - - - - - - - - -| | |
| 194 | | snaph (16 bit) (rw) | | |
| 195 | + 0x14 |- - - - - - - - - - - - - - - -| | |
| 196 | TIMER0 | snapl (16 bit) (rw) | | |
| 197 | [3] + 0x10 |- - - - - - - - - - - - - - - -| > 0x00000020 |
| 198 | | periodh (16 bit) (rw) | | |
| 199 | + 0x0c |- - - - - - - - - - - - - - - -| | |
| 200 | | periodl (16 bit) (rw) | | |
| 201 | + 0x08 |- - - - - - - - - - - - - - - -| | |
| 202 | | control (4 bit) (rw) | | |
| 203 | + 0x04 |- - - - - - - - - - - - - - - -| | |
| 204 | | status (2 bit) (rw) | / |
| 205 | 0x00920940 ---32-----------16|15------------0- CFG_NIOS_CPU_TIMER0 |
| 206 | | | \ |
| 207 | : gap : > (space for UART1) |
| 208 | | | / |
| 209 | 0x00920920 ---32-----------16|15------------0- |
| 210 | | (unused) | \ |
| 211 | + 0x1c |- - - - - - - - - - - - - - - -| | |
| 212 | | (unused) | | |
| 213 | + 0x18 |- - - - - - - - - - - - - - - -| | |
| 214 | | (unused) | | |
| 215 | + 0x14 |- - - - - - - - - - - - - - - -| | |
| 216 | UART0 | (unused) | > 0x00000020 |
| 217 | [2] + 0x10 |- - - - - - - - - - - - - - - -| | |
| 218 | | control (10 bit) (rw) | | |
| 219 | + 0x0c |- - - - - - - - - - - - - - - -| | |
| 220 | | status (10 bit) (rw) | | |
| 221 | + 0x08 |- - - - - - - - - - - - - - - -| | |
| 222 | | txdata (8 bit) (wo) | | |
| 223 | + 0x04 |- - - - - - - - - - - - - - - -| | |
| 224 | | rxdata (8 bit) (ro) | / |
| 225 | 0x00920900 ---32-----------16|15------------0- CFG_NIOS_CPU_UART0 |
| 226 | |
| 227 | - - - - - - - - - - - on chip debugging - - - - - - - - - - - - - - - - - - - |
| 228 | |
| 229 | 0x00920900 ----------------------------------- |
| 230 | | | \ |
| 231 | : (real size : | |
| 232 | OCI Debug : and content : > CFG_NIOS_CPU_OCI_SIZE |
| 233 | : unknown) : | = 0x00000100 |
| 234 | | | / |
| 235 | 0x00920800 ----------------------------------- CFG_NIOS_CPU_OCI_BASE |
| 236 | |
| 237 | - - - - - - - - - - - on chip memory 2 - - - - - - - - - - - |
| 238 | |
| 239 | 0x00920800 ---32-----------16|15------------0- |
| 240 | | : | \ |
| 241 | | : | | |
| 242 | GERMS | : | > CFG_NIOS_CPU_ROM_SIZE |
| 243 | | : | | = 0x00000800 |
| 244 | | : | / |
| 245 | 0x00920000 |- - - - - - - - - - - - - - - -+- - CFG_NIOS_CPU_RST_VECT |
| 246 | 0x00920000 ---32-----------16|15------------0- CFG_NIOS_CPU_ROM_BASE |
| 247 | |
| 248 | - - - - - - - - - - - external i/o - - - - - - - - - - - - - - - - - - - |
| 249 | |
| 250 | 0x00920000 ---32-----------16|15------------0- |
| 251 | | gap | \ |
| 252 | 0x00910310 --+-------------------------------| | |
| 253 | | | | |
| 254 | | register bank (size = 0x10) | | |
| 255 | | +--------.---.---.--- | | |
| 256 | | | bank 0 \ 1 \ 2 \ 3 \ | | |
| 257 | | |---------------------------+ | | |
| 258 | LAN91C111 | | BANK | RESERVED | | | |
| 259 | | |- - - - - - -|- - - - - - -| | > na_lan91c111_size |
| 260 | | | RPCR | MIR | | | = 0x00010000 |
| 261 | | |- - - - - - -|- - - - - - -| | | |
| 262 | | | COUNTER | RCR | | | |
| 263 | | |- - - - - - -|- - - - - - -| | | |
| 264 | | | EPH STATUS | TCR | | | |
| 265 | | +---------------------------+ | | |
| 266 | 0x00910300 --+--LAN91C111_REGISTERS_OFFSET---| | |
| 267 | | gap | / |
| 268 | 0x00910000 ---32-----------16|15------------0- CFG_NIOS_CPU_LAN0_BASE |
| 269 | |
| 270 | - - - - - - - - - - - on chip memory 1 - - - - - - - - - - - |
| 271 | |
| 272 | 0x00910000 ---32-----------16|15------------0- |
| 273 | | : | \ |
| 274 | | : | | |
| 275 | onchip RAM | : | > CFG_NIOS_CPU_RAM_SIZE |
| 276 | | : | | = 0x00010000 |
| 277 | | : | / |
| 278 | 0x00900000 ---32-----------16|15------------0- CFG_NIOS_CPU_RAM_BASE |
| 279 | |
| 280 | - - - - - - - - - - - external memory 1 - - - - - - - - - - - - - - - - - - - |
| 281 | |
| 282 | 0x00900000 ---32-----------16|15------------0- |
| 283 | 0x00900000 --+32-----------16|15------------0+ |
| 284 | | . | \ \ |
| 285 | | . | | | |
| 286 | | . | | > CFG_NIOS_CPU_VEC_SIZE |
| 287 | | . | | | = 0x00000100 |
| 288 | | . | | / |
| 289 | 0x008fff00 |- - - - - - - - - - - - - - - -+-|- CFG_NIOS_CPU_VEC_BASE |
| 290 | 0x008fff00 |- - - - - - - - - - - - - - - -+-|- CFG_NIOS_CPU_STACK |
| 291 | | . | | \ |
| 292 | | . | | | |
| 293 | | . | | > stack area |
| 294 | | . | | | |
| 295 | | . | | V |
| 296 | | . | | |
| 297 | SRAM | . | > CFG_NIOS_CPU_SRAM_SIZE |
| 298 | | . | | = 0x00100000 |
| 299 | | | / |
| 300 | 0x00800000 ---32-----------16|15------------0- CFG_NIOS_CPU_SRAM_BASE |
| 301 | 0x00800000 ---8-------------4|3-------------0- |
| 302 | | sector 127 | \ |
| 303 | + 0x7f0000 |- - - - - - - - - - - - - - - -| | |
| 304 | | : | | |
| 305 | Flash |- - - - : - - - -| > CFG_NIOS_CPU_FLASH_SIZE |
| 306 | | sector 1 : | | = 0x00800000 |
| 307 | + 0x010000 |- - - - - - - - - - - - - - - -| | |
| 308 | | sector 0 (size = 0x10000) | / |
| 309 | 0x00000000 ---8-------------4|3-------------0- CFG_NIOS_CPU_FLASH_BASE |
| 310 | |
| 311 | |
| 312 | =============================================================================== |
| 313 | F L A S H M E M O R Y A L L O C A T I O N |
| 314 | =============================================================================== |
| 315 | |
| 316 | 0x00800000 ---8-------------4|3-------------0- |
| 317 | | : | \ |
| 318 | | : | | |
| 319 | SAFE | : | > 2 MByte |
| 320 | FPGA conf. | : | | (NOT usable by software) |
| 321 | | : | / |
| 322 | 0x00600000 --+- - - - - - - -:- - - - - - - -+- |
| 323 | | : | \ |
| 324 | | : | | |
| 325 | USER | : | > 2 MByte |
| 326 | FPGA conf. | : | | (NOT usable by software) |
| 327 | | : | / |
| 328 | 0x00400000 --+- - - - - - - -:- - - - - - - -+- |
| 329 | | : | \ |
| 330 | | : | | |
| 331 | WEB pages | : | > 2 MByte |
| 332 | | : | | (provisory usable) |
| 333 | | : | / |
| 334 | 0x00200000 --+- - - - - - - -:- - - - - - - -+- |
| 335 | | : | \ |
| 336 | | : | | |
| 337 | | : | > 2 MByte free for use |
| 338 | 0x00040000 --+- - - - - - - -:- - - - - - - -+-|- u-boot _start() |
| 339 | | : | / |
| 340 | 0x00000000 ---8-------------4|3-------------0- |
| 341 | |
| 342 | |
| 343 | =============================================================================== |
| 344 | R E F E R E N C E S |
| 345 | =============================================================================== |
| 346 | [1] http://www.altera.com/literature/manual/mnl_nios_board_stratix_1s40.pdf |
| 347 | [2] http://www.altera.com/literature/ds/ds_nios_uart.pdf |
| 348 | [3] http://www.altera.com/literature/ds/ds_nios_timer.pdf |
| 349 | [4] http://www.altera.com/literature/ds/ds_nios_pio.pdf |
| 350 | [5] http://www.opencores.org/projects/ata/ |
| 351 | http://www.t13.org/index.html |
| 352 | |
| 353 | |
| 354 | =============================================================================== |
| 355 | Stephan Linz <linz@li-pro.net> |