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RELEASED
DATA SHEET
PM7366 FREEDM-8
ISSUE 4
PMC-1970930
FRAME ENGINE AND DATA LINK MANAGER
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA,INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
85
RPQLFI:
The receive packet descriptor large buffer free queue cache read interrupt status bit (RPQLFI)
reports receive packet descriptor large free queue cache read interrupts to the PCI host.
RPQLFI is set high when the programmable number of RPDR blocks is read from the RPDR
Large Buffer Free Queue. RPQLFI remains valid when interrupts are disabled and may be
polled to detect RPDR large buffer free queue cache read events.
RPQRDYI:
The receive packet descriptor ready queue write interrupt status bit (RPQRDYI) reports
receive packet descriptor ready queue write interrupts to the PCI host. RPQRDYI is set high
when the programmable number of RPDRs is written to the RPDR Ready Queue. RPQRDYI
remains valid when interrupts are disabled and may be polled to detect RPDR ready queue
write events.
RPDFQEI:
The receive packet descriptor free queue error interrupt status bit (RPDFQEI) reports receive
packet descriptor free queue error interrupts to the PCI host. RPDFQEI is set high upon
attempts to retrieve an RPDR when both the large buffer and small buffer free queues are
empty. RPDFQEI remains valid when interrupts are disabled and may be polled to detect
RPDR free queue empty error events.
RPDRQEI:
The receive packet descriptor ready queue error interrupt status bit (RPDRQEI) reports
receive packet descriptor ready queue error interrupts to the PCI host. RPDRQEI is set high
upon attempts to write an RPDR when ready queue is ready full. RPDRQEI remains valid
when interrupts are disabled and may be polled to detect RPDR ready queue full error events.
TDQFI:
The transmit packet descriptor free queue write interrupt status bit (TDQFI) reports transmit
packet descriptor free queue write interrupts to the PCI host. TDQFI is set high when the
programmable number of TDRs is written to the TDR Free Queue. TDQFI remains valid
when interrupts are disabled and may be polled to detect TDR free queue write events.
TDQRDYI:
The transmit descriptor ready queue cache read interrupt status bit (TDQRDYI) reports
transmit descriptor ready queue cache read interrupts to the PCI host. TDQRDYI is set high
when the programmable number of TDRs is read from the TDR Ready Queue. TDQRDYI
remains valid when interrupts are disabled and may be polled to detect TDR ready queue
cache read events.
TDFQEI:
The transmit descriptor free queue error interrupt status bit (TDFQEI) reports transmit
descriptor free queue error interrupts to the PCI host. TDFQEI is set high when an attempt to