I2C Registers
21.4.1.1 I2C_REVNB_LO Register (offset = 00h) [reset = 0h]
I2C_REVNB_LO is shown in
and described in
This read-only register contains the hard-coded revision number of the module. A write to this register has
no effect. I2C controller with interrupt using interrupt vector register (I2C_IV) is revision 1.x. I2C controller
with interrupt using status register bits (I2C_IRQSTATUS_RAW) is revision 2.x.
Figure 21-16. I2C_REVNB_LO Register
31
30
29
28
27
26
25
24
Reserved
R-0h
23
22
21
20
19
18
17
16
Reserved
R-0h
15
14
13
12
11
10
9
8
RTL
MAJOR
R-0h
R-0h
7
6
5
4
3
2
1
0
CUSTOM
MINOR
R-0h
R-0h
LEGEND: R/W = Read/Write; R = Read only; W1toCl = Write 1 to clear bit; -n = value after reset
Table 21-9. I2C_REVNB_LO Register Field Descriptions
Bit
Field
Type
Reset
Description
31-16
Reserved
R
0h
15-11
RTL
R
0h
RTL version.
10-8
MAJOR
R
0h
Major Revision.
This field changes when there is a major feature change.
This field does not change due to bug fix, or minor feature change.
7-6
CUSTOM
R
0h
Indicates a special version for a particular device.
Consequence of use may avoid use of standard Chip Support
Library (CSL) / Drivers.
0 if non-custom.
5-0
MINOR
R
0h
Minor Revision This field changes when features are scaled up or
down.
This field does not change due to bug fix, or major feature change.
3717
SPRUH73H – October 2011 – Revised April 2013
I2C
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