XRT91L80 View Datasheet(PDF) - Exar Corporation
Part Name
Description
MFG CO.
'XRT91L80' PDF : 45 Pages View PDF
xr
REV. P1.1.0
PRELIMINARY
XRT91L80
2.488/2.666 GBPS STS-48/STM-16 SONET/SDH TRANSCEIVER
TABLE 17: MICROPROCESSOR REGISTER 0X3EH BIT DESCRIPTION
DEVICE "ID" REGISTER (0X3EH)
BIT
NAME
FUNCTION
Register
Type
Default
Value
(HW reset)
D7
Device "ID" The device "ID" of the XRT91L80 LIU is 0xC0h. Along with the
RO
1
D6
revision "ID", the device "ID" is used to enable software to identify
1
D5
the silicon adding flexibility for system control and debug.
0
D4
0
D3
0
D2
0
D1
0
D0
0
TABLE 18: MICROPROCESSOR REGISTER 0X3FH BIT DESCRIPTION
REVISION "ID" REGISTER (0X3FH)
BIT
NAME
FUNCTION
Register
Type
Default
Value
(HW reset)
D7
Revision The revision "ID" of the XRT91L80 LIU is used to enable software
RO
This byte
D6
"ID" to identify which revision of silicon is currently being tested. The
D5
revision "ID" for the first revision of silicon (Revision A) will be
D4
0x01h.
shows the
revision of
the device.
D3
D2
D1
D0
37
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