PM4341AT1XC
DATA SHEET
PMC-900602
ISSUE 7
T1 FRAMER/TRANSCEIVER
Register 31H:TPSC µP Access Status
Bit
Type
Function
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
R
BUSY
0
X
X
X
X
X
X
X
Unused
Unused
Unused
Unused
Unused
Unused
Unused
The BUSY bit in the Status register is high while a µP access request is in
progress. The BUSY bit goes low timed to an internal high-speed clock rising
edge after the access has been completed. During normal operation, the Status
Register should be polled until the BUSY bit goes low before another µP access
request is initiated. A µP access request is typically completed within 640 ns.
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
129
PMC [ PMC-SIERRA, INC ]
