User`s guide

DWMBB/B Module Registers

Diagnostic Control Register 1 (BDCR1)

BDCR1 is used by diagnostics to perform various diagnostic functions on the

DWMBB/B module, ensuring that its hardware operates properly.

ADDRESS

XMI nodespace base address + 0000 0058

1 76543210

MUST BE ZERO

DWMBB Flip Address FADDR Bit<1>

0 MBZ

DWMBB Flip Bit<29>

msb−p119−89

Force BIIC Loopback Mode

Force BCI Bad Parity

bits<31:7>

Name: Reserved

Mnemonic: None

Type: RO, 0

Reserved; must be zero.

bit<6>

Name: DWMBB/B Flip Failing Address Bit<1>

Mnemonic: B Flip FADDR 1

Type: R/W, 0

DWMBB/B Flip Failing Address Bit<1>, used with I/O Address Bit<2>,

enables diagnostics to access and test all the data buffers in the

DWMBB/A module’s transaction register ﬁle. Combinations of these

two bits allow the DWMBB/B module to send DMA loopback mode

DMA write data to any one of the write data buffers, or to allow the

DWMBB/B module to read any one of the read data buffers.

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