USB Registers
16.5.1.1 REVREG Register (offset = 0h) [reset = 4EA20800h]
REVREG is shown in
and described in
Figure 16-22. REVREG Register
31
30
29
28
27
26
25
24
SCHEME
Reserved
FUNC
R-1h
R-EA2h
23
22
21
20
19
18
17
16
FUNC
R-EA2h
15
14
13
12
11
10
9
8
R_RTL
X_MAJOR
R-1h
R-0h
7
6
5
4
3
2
1
0
CUSTOM
Y_MINOR
R-0h
R-0h
LEGEND: R/W = Read/Write; R = Read only; W1toCl = Write 1 to clear bit; -n = value after reset
Table 16-30. REVREG Register Field Descriptions
Bit
Field
Type
Reset
Description
31-30
SCHEME
R
1h
Used to distinguish between legacy interface scheme and current.
0 = Legacy
1 = Current
27-16
FUNC
R
EA2h
Function indicates a software compatible module family.
15-11
R_RTL
R
1h
RTL revision.
Will vary depending on release.
10-8
X_MAJOR
R
0h
Major revision.
7-6
CUSTOM
R
0h
Custom revision
5-0
Y_MINOR
R
0h
Minor revision.
USBSS Revision Register
1762
Universal Serial Bus (USB)
SPRUH73H – October 2011 – Revised April 2013
Copyright © 2011–2013, Texas Instruments Incorporated