Hardware/Memory Controller

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Memory Controller
Access
EspressoNone
StarbuckFull
Registers
Base0x0d8b4000
Length???
Access size16 bits
Byte orderBig Endian
IRQs
Espresso???
Latte???
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The Latte hardware implements AMBA (possibly rev 2.0) compliant AHB buses for communication to/from the Starbuck's CPU and assorted on-chip hardware blocks (DMA, for example).
One of such blocks appears to be a customized memory controller that is responsible for several tasks such as DDR configuration, flushing memory to/from the AHB and employing a custom memory protection solution dubbed MEM_BLOCK.
This controller appears to be an extension of the one that was previously used on the Wii.

Register List

Memory Controller
Address Bits Name Description
0x0d8b4026 16 MEM_UNK Unknown
0x0d8b4200 16 MEM_COMPAT Unknown
0x0d8b4202 16 MEM_PROT_REG Unknown
0x0d8b4204 16 MEM_PROT_SPL SPL protection enable/disable
0x0d8b4206 16 MEM_PROT_SPL_BASE SPL protection base address
0x0d8b4208 16 MEM_PROT_SPL_END SPL protection end address
0x0d8b420a 16 MEM_PROT_DDR DDR protection enable/disable
0x0d8b420c 16 MEM_PROT_DDR_BASE DDR protection base address
0x0d8b420e 16 MEM_PROT_DDR_END DDR protection end address
0x0d8b4210 16 MEM_COLSEL Unknown
0x0d8b4212 16 MEM_ROWSEL Unknown
0x0d8b4214 16 MEM_BANKSEL Unknown
0x0d8b4216 16 MEM_RANKSEL Unknown
0x0d8b4218 16 MEM_COLMSK Unknown
0x0d8b421a 16 MEM_ROWMSK Unknown
0x0d8b421c 16 MEM_BANKMSK Unknown
0x0d8b421e 16 MEM_PROT_SPL_ERR SPL protection error
0x0d8b4220 16 MEM_PROT_DDR_ERR DDR protection error
0x0d8b4222 16 MEM_PROT_SPL_MSK SPL protection mask
0x0d8b4224 16 MEM_PROT_DDR_MSK DDR protection mask
0x0d8b4226 16 MEM_RFSH Unknown
0x0d8b4228 16 MEM_AHMFLUSH AHB flush request
0x0d8b422a 16 MEM_AHMFLUSH_ACK AHB flush request acknowledgment
0x0d8b4268 16 MEM_SEQRD_HWM Unknown
0x0d8b426a 16 MEM_SEQWR_HWM Unknown
0x0d8b426c 16 MEM_SEQCMD_HWM Unknown
0x0d8b426e 16 MEM_CPUAHM_WR_T Unknown
0x0d8b4270 16 MEM_DMAAHM_WR_T Unknown
0x0d8b4272 16 MEM_DMAAHM0_WR_T Unknown
0x0d8b4274 16 MEM_DMAAHM1_WR_T Unknown
0x0d8b4276 16 MEM_PI_WR_T Unknown
0x0d8b4278 16 MEM_PE_WR_T Unknown
0x0d8b427a 16 MEM_IO_WR_T Unknown
0x0d8b427c 16 MEM_DSP_WR_T Unknown
0x0d8b427e 16 MEM_ACC_WR_T Unknown
0x0d8b4280 16 MEM_ARB_MAXWR Unknown
0x0d8b4282 16 MEM_ARB_MINRD Unknown
0x0d8b4284 16 MEM_PROF_CPUAHM Unknown
0x0d8b4286 16 MEM_PROF_CPUAHM0 Unknown
0x0d8b4288 16 MEM_PROF_DMAAHM Unknown
0x0d8b428a 16 MEM_PROF_DMAAHM0 Unknown
0x0d8b428c 16 MEM_PROF_DMAAHM1 Unknown
0x0d8b428e 16 MEM_PROF_PI Unknown
0x0d8b4290 16 MEM_PROF_VI Unknown
0x0d8b4292 16 MEM_PROF_IO Unknown
0x0d8b4294 16 MEM_PROF_DSP Unknown
0x0d8b4296 16 MEM_PROF_TC Unknown
0x0d8b4298 16 MEM_PROF_CP Unknown
0x0d8b429a 16 MEM_PROF_ACC Unknown
0x0d8b429c 16 MEM_RDPR_CPUAHM Unknown
0x0d8b429e 16 MEM_RDPR_CPUAHM0 Unknown
0x0d8b42a0 16 MEM_RDPR_DMAAHM Unknown
0x0d8b42a2 16 MEM_RDPR_DMAAHM0 Unknown
0x0d8b42a4 16 MEM_RDPR_DMAAHM1 Unknown
0x0d8b42a6 16 MEM_RDPR_PI Unknown
0x0d8b42a8 16 MEM_RDPR_VI Unknown
0x0d8b42aa 16 MEM_RDPR_IO Unknown
0x0d8b42ac 16 MEM_RDPR_DSP Unknown
0x0d8b42ae 16 MEM_RDPR_TC Unknown
0x0d8b42b0 16 MEM_RDPR_CP Unknown
0x0d8b42b2 16 MEM_RDPR_ACC Unknown
0x0d8b42b4 16 MEM_ARB_MAXRD Unknown
0x0d8b42b6 16 MEM_ARB_MISC Unknown
0x0d8b42b8 16 MEM_ARAM_EMUL Unknown
0x0d8b42ba 16 MEM_WRMUX Unknown
0x0d8b42bc 16 MEM_PERF Unknown
0x0d8b42be 16 MEM_PERF_READ Unknown
0x0d8b42c0 16 MEM_ARB_EXADDR Unknown
0x0d8b42c2 16 MEM_ARB_EXCMD Unknown
0x0d8b42c4 16 MEM_SEQ_DATA DDR SEQ register's value to read/write
0x0d8b42c6 16 MEM_SEQ_ADDR DDR SEQ register's address to read/write
0x0d8b42c8 16 MEM_BIST_DATA DDR BIST register's address to read/write
0x0d8b42ca 16 MEM_BIST_ADDR DDR BIST register's address to read/write
0x0d8b42cc 16 MEM_EDRAM_REFRESH_CTRL EDRAM refresh settings
0x0d8b42ce 16 MEM_EDRAM_REFRESH_VAL EDRAM refresh value
0x0d8b42d4 16 MEM_MEM1_COMPAT_MODE Unknown
0x0d8b42d8 16 MEM_UNK Unknown
0x0d8b4300 16 MEM_SEQ0_DATA DDR SEQ0 sequential register's value to read/write
0x0d8b4302 16 MEM_SEQ0_ADDR DDR SEQ0 sequential register's address to read/write
0x0d8b4400 16 MEM_BLOCK_MEM0_CFG MEM block protection configuration for MEM0
0x0d8b4402 16 MEM_BLOCK_MEM1_CFG MEM block protection configuration for MEM1
0x0d8b4404 16 MEM_BLOCK_MEM2_CFG MEM block protection configuration for MEM2
0x0d8b4406 16 MEM_BLOCK_ERROR_ADDR_LOW MEM block protection violation's address (low)
0x0d8b4408 16 MEM_BLOCK_ERROR_ADDR_HIGH MEM block protection violation's address (high)
0x0d8b440e 16 MEM_BLOCK_UNK Unknown
0x0d8b442a 16 MEM_BLOCK_UNK Unknown
0x0d8b442c 16 MEM_BLOCK_UNK Unknown
0x0d8b44c4 16 MEM_BLOCK_UNK Unknown
0x0d8b4472 16 MEM_BLOCK_ERROR_CID MEM block protection violation's client ID
0x0d8b4474 16 MEM_BLOCK_ERROR MEM block protection violation's state
0x0d8b4494 16 MEM_BLOCK_UNK Unknown
0x0d8b4492 16 MEM_BLOCK_UNK Unknown

Register Details