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ICCDR—I/O Control Chip Diagnostic Register
Address
BB + 2080
Access
R/W
The ICCDR register can be programmed by diagnostics to force er-
rors on the TLSB and Turbo Vortex buses for the I/O port to detect.
Hose errors can also be forced, but this is a function of the
loopback feature. Refer to the TurboLaser I/O port functional
specifications for details.
System bus errors are transmitted on the TLSB and are detected
by the I/O port when the signals are received back.
This register can also be used to force errors to be generated
across the Down and Up Turbo Vortex buses.
This register is physically located in the ICR gate array of the I/O
port.
31 30
ENA_DMA_HID
7-122 System Registers
RSVD
FRC_IDR_CMD_PE
RSVD
FRC_BNK_BSY
FRC_CMD_PE
DIS_TLSB_FAULT
DIS_TLSB_CMD
FRC_IDR_CSR_BUS_PE
9
8
7
6
5
4
3
2
FRC_DTO
FRC_DSE
BXB-0765-93
1
0
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