XR21B1422IL40-0A Datasheet, PDF (20/60 Pages) Exar Corporation – Enhanced 2-Ch Full-Speed USB UART

XR21B1422
Name
XR_SET_REG
See Table 5
XR_GET_REG
See Table 5
XR_GET_REVISION
See Table 5
XR_SET_USB_STAT
See Table 5
XR_SET_USB_STAT
See Table 5
Table 4: Supported USB Control Commands
Request
Type
Request
Value
LSB MSB
Index
LSB
MSB
Length
LSB MSB
Description
0x41
0x0
0xC1
0x0
0xC0
0x0
write-
data
LSB
0x0
write-
data
MSB
0x0
write
addr
read
addr
0x0
0x0
0x60
Chan # 0x0
0x0
Vendor specific register access.
Channel #0, 2 for channel A, B
respectively.
Chan # 0x2
0x0
Vendor specific register access.
Channel #0, 2 for channel A, B
respectively.
0x02
0x2
0x0
Vendor specific register access.
0x40
0x0
0xC0
0x0
write-
data
LSB
0x0
write-
data
MSB
0x0
0x62
0x62
0x02
0x0
0x0
Vendor specific register access.
0x02
0x2
0x0
Vendor specific register access.
© 2014 Exar Corporation
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exar.com/XR21B1422
Rev 1A