XRT91L34IV-F View Datasheet(PDF) - Exar Corporation
Part Name
Description
MFG CO.
'XRT91L34IV-F' PDF : 38 Pages View PDF
REV. 1.0.1
XRT91L34
QUAD CHANNEL MULTIRATE STS-12/3/1 AND STM-4/1/0 SONET/SDH CDR
TABLE 12: MICROPROCESSOR INTERFACE REGISTER 0X03 BIT DESCRIPTION
DEVICE "ID" REGISTER (0X03)
BIT
NAME
FUNCTION
Register
Type
Default
Value
(HW reset)
D7
Device "ID" The device "ID" of the XRT91L34 CDR is 0x8405h. Along with the
RO
0
D6
LSB revision "ID", the device "ID" is used to enable software to identify
0
D5
the silicon adding flexibility for system control and debug.
0
D4
0
D3
0
D2
1
D1
0
D0
1
TABLE 13: MICROPROCESSOR INTERFACE REGISTER 0X04 BIT DESCRIPTION
REVISION "ID" REGISTER (0X04)
BIT
NAME
FUNCTION
Register
Type
Default
Value
(HW reset)
D7
Revision The revision "ID" of the XRT91L34 CDR is used to enable software
RO
0
D6
"ID" to identify which revision of silicon is currently being tested. This
0
D5
MSB MSB revision "ID" register will always contain the value 0x00h.
0
D4
0
D3
0
D2
0
D1
0
D0
0
TABLE 14: MICROPROCESSOR INTERFACE REGISTER 0X05 BIT DESCRIPTION
REVISION "ID" REGISTER (0X05)
BIT
NAME
FUNCTION
Register
Type
Default
Value
(HW reset)
D7
Revision The revision "ID" of the XRT91L34 CDR is used to enable software
RO
This byte
D6
"ID" to identify which revision of silicon is currently being tested. The
shows the
D5
LSB revision "ID" for the first revision of silicon (Revision A) will be
D4
0x01h.
revision of
the device.
D3
D2
D1
D0
29
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