Editing Cell Configuration Ring

[[Category:Hardware]]
The Cell Configuration ring is sent to the Cell BE processor via an SPI bus from syscon. It is used to configure basic processor settings in preparation for booting.

= Sample =
This [http://www.ps3devforum.com/viewtopic.php?p=31#p31 data was captured] from the SPI bus connecting CELL to SYSCON and parsed as per the [https://www-01.ibm.com/chips/techlib/techlib.nsf/techdocs/BD3F1F4C3DB32C7487257142006131BC/$file/CellBE_HIG_90nm_v1.5_30Nov2007_pub.pdf Cell BE 90nm HIG]. See the full SPI dump for more boot-time communication over SPI.

{| class="wikitable"
! Offset
! Length (bits)
! PS3 Value (bits)
! PS3 Value (hex)
! Description

|-
! colspan="5" style="center" | Pervasive Logic (PRV) Bits
|-
| 0000 || 002 || 0b00 || 0x0 || reserved
|-
! colspan="5" style="center" | SPE_1 Bits
|-
| 0002 || 009 || 0b0 0000 0000 || 0x000 || reserved
|-
| 0011 || 015 || 0b000 0000 0000 0000 || 0x0000 || SPE1 MC_BASE
|-
| 0026 || 015 || 0b100 0000 0000 0000 || 0x4000 || SPE1 MC_COMP_EN
|-
| 0041 || 010 || 0b11 1000 0000 || 0x380 || SPE1 IOIF1_COMP_EN
|-
| 0051 || 032 || 0b1000 0000 0000 0000 0000 0000 0000 0000 || 0x80000000 || reserved
|-
| 0083 || 040 || 0b10 0100 0000 0001 1111 1100 0000 0000 0000 0000 0000 || 0x2401fc00000 || SPE1 SReset???
|-
| 0123 || 064 || 0b0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 1000 0000 0010 || 0x0000000000000802 || reserved
|-
| 0187 || 019 || 0b100 0000 0000 0000 0000 || 0x40000 || SPE1 BE_MMIO_Base
|-
| 0206 || 004 || 0b0000 || 0x0 || SPE1 unit Cell BE node ID
|-
| 0210 || 003 || 0b001 || 0x1 || SPE1 SPE ID
|-
| 0213 || 011 || 0b001 1011 0000 || 0x1B0 || reserved
|-
! colspan="5" style="center" | SPE_3 Bits
|-
| 0224 || 009 || 0b0 0000 0000 || 0x000 || reserved
|-
| 0233 || 015 || 0b000 0000 0000 0000 || 0x0000 || SPE3 MC_BASE
|-
| 0248 || 015 || 0b100 0000 0000 0000 || 0x4000 || SPE3 MC_COMP_EN
|-
| 0263 || 010 || 0b11 1000 0000 || 0x380 || SPE3 IOIF1_COMP_EN
|-
| 0273 || 032 || 0b1000 0000 0000 0000 0000 0000 0000 0000 || 0x80000000 || reserved
|-
| 0305 || 040 || 0b10 0100 0000 0001 1111 1100 0000 0000 0000 0000 0000 || 0x2401fc00000 || SPE3 SReset???
|-
| 0345 || 064 || 0b0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 1000 0000 0010 || 0x0000000000000802 || reserved
|-
| 0409 || 019 || 0b100 0000 0000 0000 0000 || 0x40000 || SPE3 BE_MMIO_Base
|-
| 0428 || 004 || 0b0000 || 0x0 || SPE3 unit Cell BE node ID
|-
| 0432 || 003 || 0b011 || 0x3 || SPE3 SPE ID
|-
| 0435 || 011 || 0b001 1011 0000 || 0x1B0 || reserved
|-
! colspan="5" style="center" | SPE_5 Bits
|-
| 0446 || 009 || 0b0 0000 0000 || 0x000 || reserved
|-
| 0455 || 015 || 0b000 0000 0000 0000 || 0x0000 || SPE5 MC_BASE
|-
| 0470 || 015 || 0b100 0000 0000 0000 || 0x4000 || SPE5 MC_COMP_EN
|-
| 0485 || 010 || 0b11 1000 0000 || 0x380 || SPE5 IOIF1_COMP_EN
|-
| 0495 || 032 || 0b1000 0000 0000 0000 0000 0000 0000 0000 || 0x80000000 || reserved
|-
| 0527 || 040 || 0b10 0100 0000 0001 1111 1100 0000 0000 0000 0000 0000 || 0x2401fc00000 || SPE5 SReset???
|-
| 0567 || 064 || 0b0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 1000 0000 0010 || 0x0000000000000802 || reserved
|-
| 0631 || 019 || 0b100 0000 0000 0000 0000 || 0x40000 || SPE5 BE_MMIO_Base
|-
| 0650 || 004 || 0b0000 || 0x0 || SPE5 unit Cell BE node ID
|-
| 0654 || 003 || 0b101 || 0x5 ||  SPE5 SPE ID
|-
| 0657 || 011 || 0b001 1011 0000 || 0x1B0 || reserved
|-
! colspan="5" style="center" | SPE_7 Bits
|-
| 0668 || 009 || 0b0 0000 0000 || 0x000 || reserved
|-
| 0677 || 015 || 0b000 0000 0000 0000 || 0x0000 || SPE7 MC_BASE
|-
| 0692 || 015 || 0b100 0000 0000 0000 || 0x4000 || SPE7 MC_COMP_EN
|-
| 0707 || 010 || 0b11 1000 0000 || 0x380 || SPE7 IOIF1_COMP_EN
|-
| 0717 || 032 || 0b1000 0000 0000 0000 0000 0000 0000 0000 || 0x80000000 || reserved
|-
| 0749 || 040 || 0b10 0100 0000 0001 1111 1100 0000 0000 0000 0000 0000 || 0x2401fc00000 || SPE7 SReset???
|-
| 0789 || 064 || 0b0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 1000 0000 0010 || 0x0000000000000802 || reserved
|-
| 0853 || 019 || 0b100 0000 0000 0000 0000 || 0x40000 || SPE7 BE_MMIO_Base
|-
| 0872 || 004 || 0b0000 || 0x0 || SPE7 unit Cell BE node ID
|-
| 0876 || 003 || 0b111 || 0x7 ||  SPE7 SPE ID
|-
| 0879 || 011 || 0b001 1011 0000 || 0x1B0 || reserved
|-
! colspan="5" style="center" | Cell Broadband Engine Interface (BEI) Unit Bits
|-
| 0890 || 002 || 0b00 || 0x0 || reserved
|-
| 0892 || 004 || 0b0000 || 0x0 || BIF unit Cell BE node ID
|-
| 0896 || 022 || 0b10 0000 0000 0000 0000 0101 || 0x200005 || BEI BE_MMIO_Base
|-
| 0918 || 003 || 0b110 || 0x6 || reserved
|-
| 0921 || 003 || 0b011 || 0x3 || reserved
|-
| 0924 || 012 || 0b1111 1000 0000 || 0xf80 || IOIF1 base address mask
|-
| 0936 || 022 || 0b10 0100 0000 0000 0000 0000 || 0x240000 || IOIF1 base address and replacement
|-
| 0958 || 012 || 0b1111 1000 0000 || 0xf80 || IOIF0 base address mask
|-
| 0970 || 022 || 0b10 1000 0000 0000 0000 0000 || 0x280000 ||  IOIF0 base address and replacement
|-
| 0992 || 002 || 0b00 || 0x0 || reserved
|-
| 0994 || 002 || 0b10 || 0x2 || AC0 configuration
|-
| 0996 || 005 || 0b0 0100 || 0x04 || BIF/IOIF0 receive (RX) configuration
|-
| 1001 || 006 || 0b00 0100 || 0x04 || BIF/IOIF0 transmit (TX) configuration
|-
| 1007 || 006 || 0b00 0000 || 0x00 || reserved
|-
| 1013 || 001 || 0b1 || 0x1 || BIF/IOIF0 coherency mode
|-
| 1014 || 003 || 0b000 || 0x0 || reserved
|-
| 1017 || 003 || 0b100 || 0x4 || BIF/IOIF0 I/O reorder mode for transmit
|-
| 1020 || 016 || 0b0000 0000 0000 0000 || 0x0000 || reserved
|-
| 1036 || 003 || 0b100 || 0x4 || IOIF1 I/O reorder mode for transmit
|-
| 1039 || 001 || 0b1 || 0x1 || reserved
|-
| 1040 || 002 || 0b10 || 0x2 || IOIF1 RX configuration
|-
| 1042 || 002 || 0b10 || 0x2 || IOIF1 TX configuration
|-
| 1044 || 032 || 0b0000 0000 0000 0000 0000 0010 0000 0000 || 0x00000200 || FlexIO PLL configuration
|-
| 1076 || 002 || 0b00 || 0x0 ||  reserved
|-
! colspan="5" style="center" | EIB Unit Bits
|-
| 1078 || 002 || 0b00 || 0x0 || reserved
|-
| 1080 || 001 || 0b0 || 0x0 || AC0 livelock response control
|-
| 1081 || 004 || 0b0000 || 0x0 || EIB unit Cell BE node ID
|-
| 1085 || 001 || 0b0 || 0x0 || AC1 configuration
|-
| 1086 || 001 || 0b1 || 0x1 || AC0 configuration
|-
| 1087 || 004 || 0b0010 || 0x2 || AC0 command credits
|-
| 1091 || 022 || 0b10 0000 0000 0000 0000 0000 || 0x200000 || LBAR0_cfg
|-
| 1113 || 022 || 0b11 1111 1111 1111 1111 1000 || 0x3FFFF8 || LBAMR0_cfg
|-
| 1135 || 003 || 0b011 || 0x3 || reserved
|-
| 1138 || 001 || 0b0 || 0x0 || AC1 livelock response control
|-
| 1139 || 002 || 0b00 || 0x0 || reserved
|-
! colspan="5" style="center" | SPE_6 Bits
|-
| 1141 || 009 || 0b0 0000 0000 || 0x000 || reserved
|-
| 1150 || 015 || 0b000 0000 0000 0000 || 0x0000 || SPE6 MC_BASE
|-
| 1165 || 015 || 0b100 0000 0000 0000 || 0x4000 || SPE6 MC_COMP_EN
|-
| 1180 || 010 || 0b11 1000 0000 || 0x380 || SPE6 IOIF1_COMP_EN
|-
| 1190 || 032 || 0b1000 0000 0000 0000 0000 0000 0000 0000 || 0x80000000 || reserved
|-
| 1222 || 040 || 0b10 0100 0000 0001 1111 1100 0000 0000 0000 0000 0000 || 0x2401fc00000 || SPE6 SReset???
|-
| 1262 || 064 || 0b0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 1000 0000 0010 || 0x0000000000000802 || reserved
|-
| 1326 || 019 || 0b100 0000 0000 0000 0000 || 0x40000 || SPE6 BE_MMIO_Base
|-
| 1345 || 004 || 0b0000 || 0x0 || SPE6 unit Cell BE node ID
|-
| 1349 || 003 || 0b110 || 0x6 || SPE6 SPE ID
|-
| 1352 || 011 || 0b001 1011 0000 || 0x1B0 || reserved
|-
! colspan="5" style="center" | SPE_4 Bits
|-
| 1363 || 009 || 0b0 0000 0000 || 0x000 || reserved
|-
| 1372 || 015 || 0b000 0000 0000 0000 || 0x0000 || SPE4 MC_BASE
|-
| 1387 || 015 || 0b100 0000 0000 0000 || 0x4000 || SPE4 MC_COMP_EN
|-
| 1402 || 010 || 0b11 1000 0000 || 0x380 || SPE4 IOIF1_COMP_EN
|-
| 1412 || 032 || 0b1000 0000 0000 0000 0000 0000 0000 0000 || 0x80000000 || reserved
|-
| 1444 || 040 || 0b10 0100 0000 0001 1111 1100 0000 0000 0000 0000 0000 || 0x2401fc00000 || SPE4 SReset???
|-
| 1484 || 064 || 0b0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 1000 0000 0010 || 0x0000000000000802 || reserved
|-
| 1548 || 019 || 0b100 0000 0000 0000 0000 || 0x40000 || SPE4 BE_MMIO_Base
|-
| 1567 || 004 || 0b0000 || 0x0 || SPE4 unit Cell BE node ID
|-
| 1571 || 003 || 0b100 || 0x4 || SPE4 SPE ID
|-
| 1574 || 011 || 0b001 1011 0000 || 0x1B0 || reserved
|-
! colspan="5" style="center" | SPE_2 Bits
|-
| 1585 || 009 || 0b0 0000 0000 || 0x000 || reserved
|-
| 1594 || 015 || 0b000 0000 0000 0000 || 0x0000 || SPE2 MC_BASE
|-
| 1609 || 015 || 0b100 0000 0000 0000 || 0x4000 || SPE2 MC_COMP_EN
|-
| 1624 || 010 || 0b11 1000 0000 || 0x380 || SPE2 IOIF1_COMP_EN
|-
| 1634 || 032 || 0b1000 0000 0000 0000 0000 0000 0000 0000 || 0x80000000 || reserved
|-
| 1666 || 040 || 0b10 0100 0000 0001 1111 1100 0000 0000 0000 0000 0000 || 0x2401fc00000 || SPE2 SReset???
|-
| 1706 || 064 || 0b0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 1000 0000 0010 || 0x0000000000000802 || reserved
|-
| 1770 || 019 || 0b100 0000 0000 0000 0000 || 0x40000 || SPE2 BE_MMIO_Base
|-
| 1789 || 004 || 0b0000 || 0x0 || SPE2 unit Cell BE node ID
|-
| 1793 || 003 || 0b010 || 0x2 || SPE2 SPE ID
|-
| 1796 || 011 || 0b001 1011 0000 || 0x1B0 || reserved
|-
! colspan="5" style="center" | SPE_0 Bits
|-
| 1807 || 009 || 0b0 0000 0000 || 0x000 || reserved
|-
| 1816 || 015 || 0b000 0000 0000 0000 || 0x0000 || SPE0 MC_BASE
|-
| 1831 || 015 || 0b100 0000 0000 0000 || 0x4000 || SPE0 MC_COMP_EN
|-
| 1846 || 010 || 0b11 1000 0000 || 0x380 || SPE0 IOIF1_COMP_EN
|-
| 1856 || 032 || 0b1000 0000 0000 0000 0000 0000 0000 0000 || 0x80000000 || reserved
|-
| 1888 || 040 || 0b10 0100 0000 0001 1111 1100 0000 0000 0000 0000 0000 || 0x2401fc00000 || SPE0 SReset???
|-
| 1928 || 064 || 0b0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 1000 0000 0010 || 0x0000000000000802 || reserved
|-
| 1992 || 019 || 0b100 0000 0000 0000 0000 || 0x40000 || SPE0 BE_MMIO_Base
|-
| 2011 || 004 || 0b0000 || 0x0 || SPE0 unit Cell BE node ID
|-
| 2015 || 003 || 0b000 || 0x0 || SPE0 SPE ID
|-
| 2018 || 011 || 0b001 1011 0000 || 0x1B0 || reserved
|-
! colspan="5" style="center" | MIC Bus Logic Bits
|-
| 2029 || 004 || 0b1000 || 0x8 || reserved
|-
| 2033 || 016 || 0b0000 0000 0000 0000 || 0x0000 || MIC address space start
|-
| 2049 || 016 || 0b1111 1111 1111 1100 || 0xfffc || MIC address space end
|-
| 2065 || 030 || 0b10 0000 0000 0000 0000 0101 0000 1001 || 0x20000509 || PRV BE_MMIO_Base
|-
| 2095 || 030 || 0b10 0000 0000 0000 0000 0101 0000 1010 || 0x2000050A || MIC BE_MMIO_Base
|-
| 2125 || 004 || 0b0011 || 0x3 || reserved
|-
| 2129 || 004 || 0b0000 || 0x0 || MIC unit Cell BE node ID
|-
| 2133 || 002 || 0b00 || 0x0 || reserved
|-
! colspan="5" style="center" | PowerPC Processor Unit Bits
|-
| 2135 || 009 || 0b0 0000 0000 || 0x000 || reserved
|-
| 2144 || 008 || 0b0000 0000 || 0x00 || PIR_defn
|-
| 2152 || 013 || 0b0 0000 0000 0000 || 0x0000 || reserved
|-
| 2165 || 040 || 0b10 0100 0000 0001 1111 1100 0000 0000 0000 0000 0000 || 0x2401fc00000 || PPE SReset Vector
|-
| 2205 || 224 || 0b0000 ... 1000 ... 0011 1100 0000 || 0x000000000000000000000000008000000000000000000000000003c0 || reserved
|-
! colspan="5" style="center" | PowerPC Processor Storage Subsystem (PPSS) Bits
|-
| 2429 || 061 || 0b || 0x008000000000400, 0b0 || reserved
|-
| 2490 || 001 || 0b1 || 0x1 || L2 livelock
|-
| 2491 || 044 || 0b0000 0000 0000 0000 0000 0000 1111 1000 0000 0000 0000 || 0x000000f8000 || reserved
|-
| 2535 || 004 || 0b0000 || 0x0 || PPE unit Cell BE node ID
|-
| 2539 || 009 || 0b0 1101 1000 || 0x0D8 || reserved
|-
| 2548 || 030 || 0b10 0000 0000 0000 0000 0101 0000 0000 || 0x20000500 || PPE BE_MMIO_Base
|-
| 2578 || 007 || 0b100 0111 || 0x47 || reserved
|-
| 2585 || 001 || 0b1 || 0x1 || NCU 2 token decode
|-
| 2586 || 016 || 0b0000 0000 0000 0000 || 0x0000 || reserved
|-
| 2602 || 001 || 0b1 || 0x1 || NCU livelock
|-
| 2603 || 001 || 0b1 || 0x1 || PPE livelock
|-
| 2604 || 002 || 0b00 || 0x0 || reserved
|-
! colspan="5" style="center" | MIC Bits
|-
| 2606 || 016 || 0b0000 0000 0000 0000 || 0x0000 || XIO PLL LO
|-
| 2622 || 016 || 0b1001 1100 1111 1100 || 0x9cfc || XIO PLL HI
|-
| 2638 || 004 || 0b0000 || 0x0 || reserved
|-
! colspan="5" style="center" | PRV Bits
|-
| 2642 || 006 || 0b01 1111 || 0x1F || Thermal overload temperature
|-
| 2648 || 027 || 0b000 0010 1000 1000 0000 0001 1000 || 0x288018 || reserved
|-
| 2675 || 001 || 0b1 || 0x1 || Pervasive logic livelock
|-
| 2676 || 010 || 0b00 0000 0000 || 0x0 || reserved
|-
| 2686 || 008 || 0b0000 0000 || 0x08 || SPE disable
|-
| 2694 || 003 || 0b011 || 0x3 || reserved
|}