PM5371TUDX
DATA SHEET
PMC-920525
ISSUE 6
SONET/SDH TRIBUTARY UNIT CROSS CONNECT
Register 01H: Connection Memory Control
Bit
Type
Function
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Unused
Unused
Unused
Unused
Unused
APAGE
EPAGE
IPAGE
X
X
X
X
X
X
X
0
R
R
R/W
This register is used to control and monitor the selection of the active connection
memory page.
IPAGE:
The IPAGE bit is used to internally select the active connection memory page.
When IPAGE is set high, page 1 is selected. When IPAGE is cleared low,
page 0 is selected, provided that the external PAGE input is also low.
EPAGE:
The EPAGE bit can be read to determine the state of the external PAGE
input.
APAGE:
The APAGE bit can be read to determine the active connection memory
page. APAGE is the logical OR of the IPAGE bit and the PAGE input (which
can be read via the EPAGE bit).
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
31
PMC [ PMC-SIERRA, INC ]
