S/UNI-IMA-4 Telecom Standard Product Data Sheet
Released
Register 0x216: RIPP Interrupt FIFO
Bit
15
14
13:8
7:0
Type
RO
RO
Function
Default
0
0
FIFO_BUSY
FIFO_NOT_EMPTY
Reserved
RO
Group tag
0
This register is the read interface to the RIPP Interrupt FIFO. Each read to this register causes a
read to the FIFO, which automatically updates this register.
Group_tag
Group_tag identifies the group that generated the interrupt. Group_tag is valid only if
FIFO_NOT_EMPTY=1 and FIFO_BUSY=0.
FIFO_NOT_EMPTY
Current FIFO status. FIFO_NOT_EMPTY=1 means the FIFO is not empty; and
FIFO_NOT_EMPTY=0 means the FIFO is empty. FIFO_NOT_EMPTY is valid only if
FIFO_BUSY=0.
FIFO_BUSY
Indicates that the FIFO is busy retrieving the next entry. FIFO_BUSY will usually clear
within four SYSCLK cycles from the end of a read.
Proprietary and Confidential to PMC-Sierra, Inc., and for its customers’ internal use.
Document No.: PMC-2020889, Issue 2
187
PMC [ PMC-SIERRA, INC ]
