參數(shù)資料
型號: PM5372-BI
英文描述: Telecommunication IC
中文描述: 通信集成電路
文件頁數(shù): 97/169頁
文件大小: 989K
代理商: PM5372-BI
TSE Transmission Switch Element Datasheet
Released
Proprietary and Confidential to PMC-Sierra, Inc., and for its Customers’ Internal Use
Document ID: PMC-1991258, Issue 7
97
OFAI
The out-of-frame-alignment interrupt status bit (OFAI) reports and acknowledges change of
frame alignment state events for the R8FA block. OFAI is set high when the frame alignment
block changes state to the out-of-frame-alignment state or to the in-frame-alignment state.
OFAI is cleared on a read to this register when WCIMODE is logic 0. OFAI is cleared on a
write of logic 1 to OFAI when WCIMODE is logic 1. INTB is asserted low when both OFAE
and OFAI are high. IF OFAE is asserted, OFAI must be cleared before INTB will be
reasserted.
LCVI
The line code violation event interrupt status bit (LCVI) reports and acknowledges line code
violation events for the R8FA block. LCVI is set high when the character alignment block
detects a line code violation in the incoming data stream. LCVI is cleared on a read to this
register when WCIMODE is logic 0. LCVI is cleared on a write of logic 1 to LCVI when
WCIMODE is logic 1. INTB is asserted low when both LCVE and LCVI are high. IF LCVE
is asserted, LCVI must be cleared before INTB will be reasserted. Note that an
uninterrupted stream of line code violations will produce a single LCVI event as it is the
transition from not detecting and LCV to detecting an LCV that causes LCVI to be set.
FUOI
The FIFO underrun/overrun event interrupt status bit (FUOI) reports and acknowledges the
FIFO underrun/overrun events for the R8FA block. FUOI is set high when R8FA detects that
the FIFO read and write pointers are within one slot of each other. FUOI is cleared on a read
to this register when WCIMODE is logic 0. FUOI is cleared on a write of logic 1 to FUOI
when WCIMODE is logic 1. INTB is asserted low when both FUOE and FUOI are high. IF
FUOE is asserted, FUOI must be cleared before INTB will be reasserted.
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