PM8621 PMC-Sierra, Inc., PM8621 Datasheet - Page 94
PM8621
Manufacturer Part Number
PM8621
Description
NSE-8G Standard Product Data Sheet Preliminary
Manufacturer
PMC-Sierra, Inc.
Datasheet
1.PM8621.pdf
(184 pages)
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Proprietary and Confidential to PMC-Sierra, Inc., and for its Customers’ Internal Use
Document ID: PMC-2010850, Issue 1
MFSWAP
00
01
10
11
Register 04CH: DCB Configuration Register
MF_SWAP [1:0]
AUTO
SWAP_PE
Bit
Bit 31- 8
Bit 7-6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
This bit selects when RC1FP is expected and synchronizes when page swaps can occur. Table
below relates MFSWAP to all vital variables from the DCB:
This bit enables an automatic copy of the online connection memory page to the offline
connection memory page after the connection memory page is switched. Toggling the AUTO
bit to ‘0’ while a page copy is in progress will terminate the page copy process.
0: automatic update disabled.
1: automatic update enabled.
If automatic page copying is used, the page copy will take place automatically whenever the
connection memory page swaps. This means that the UPDATEV register bit will be asserted
immediately following a change from 1 to 0 in the SWAPV register bit. When the AUTO bit
is set, access to the offline connection memory page is restricted from when a page swap is
pending until when the page copy is complete
This bit enables the propagation of interrupt to the INT output due to a change in state of
SWAPV. This bit does not have an impact on SWAPI bit.
Configuration
Page Size
1080
1080
9720
9720
Type
R
R/W
R/W
R/W
R/W
R/W
R
R
Frame
Switching @
(9720 byte
frame)
1 frame
4 frame
4 frame
48 frame
AUTO
SWAP_PE
UPDATEE
FRAMEE
SWAPPV
UPDATEV
Function
Unused
MF_SWAP[1:0]
Frame
Interrupt
1 frame
4 frame
4 frame
48 frame
.
NSE-8G™ Standard Product Data Sheet
RC1FP
expected
every
4 frame
4 frame
4 frame
48 frame
Switching Mode
TelecomBus
SBI column mode
SBI DS0 mode
SBI DS0 with CAS
Default
X
0
0
0
0
0
0
0
Preliminary
93
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