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PMC-Sierra, Inc.
PM5349 S/UNI-QUAD
DATASHEET
PMC-971239 ISSUE 6 SATURN USER NETWORK INTERFACE (155-QUAD)
Proprietary and Confidential to PMC-Sierra, Inc., and for its Customers’ Internal Use
105
Register 0x31 (EXTD=1): RPOP Interrupt Status
Bit Type Function Default
Bit 7 Unused X
Bit 6 Unused X
Bit 5 Unused X
Bit 4 Unused X
Bit 3 Unused X
Bit 2 Unused X
Bit 1 Unused X
Bit 0 R ERDII X
NOTE: To facilitate additional register mapping, shadow registers have been
added to registers 0x30, 0x31 and 0x33. These shadow registers are accessed in
the same way as the normal registers.
The EXTD (extend register) bit must be set in register 0x36 to allow switching
between accessing the normal registers and the shadow registers
This register allows identification and acknowledgment of path level alarm and
error event interrupts.
ERDII:
The ERDII bit is set to logic one when a change is detected in the received
enhanced RDI state. ERDII is cleared when the RPOP Interrupt Status
register is read.