TM4C129LNCZAD Datasheet, PDF (535/2140 Pages) Texas Instruments – Tiva Microcontroller

Tiva^™ TM4C129LNCZAD Microcontroller
Register 181: Controller Area Network Peripheral Ready (PRCAN), offset
0xA34
The PRCAN register indicates whether the CAN modules are ready to be accessed by software
following a change in status of power, Run mode clocking, or reset. A power change is initiated if
the corresponding PCCAN bit is changed from 0 to 1. A Run mode clocking change is initiated if
the corresponding RCGCCAN bit is changed. A reset change is initiated if the corresponding SRCAN
bit is changed from 0 to 1.
The PRCAN bit is cleared on any of the above events and is not set again until the module is
completely powered, enabled, and internally reset.
Controller Area Network Peripheral Ready (PRCAN)
Base 0x400F.E000
Offset 0xA34
Type RO, reset 0x0000.0000
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
reserved
Type RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
reserved
R1
R0
Type RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Bit/Field
31:2
1
Name
reserved
R1
Type
RO
RO
Reset
0
0
Description
Software should not rely on the value of a reserved bit. To provide
compatibility with future products, the value of a reserved bit should be
preserved across a read-modify-write operation.
CAN Module 1 Peripheral Ready
Value Description
0 CAN module 1 is not ready for access. It is unclocked,
unpowered, or in the process of completing a reset sequence.
1 CAN module 1 is ready for access.
0
R0
RO
0
CAN Module 0 Peripheral Ready
Value Description
0 CAN module 0 is not ready for access. It is unclocked,
unpowered, or in the process of completing a reset sequence.
1 CAN module 0 is ready for access.
June 18, 2014
535
Texas Instruments-Production Data