TM4C123FH6PM Datasheet, PDF (282/1371 Pages) Texas Instruments – Tiva™ TM4C123FH6PM Microcontroller

System Control
Register 25: Watchdog Timer Peripheral Present (PPWD), offset 0x300
The PPWD register provides software information regarding the watchdog modules.
Important: This register should be used to determine which watchdog timers are implemented on
this microcontroller. However, to support legacy software, the DC1 register is available.
A read of the DC1 register correctly identifies if a legacy module is present.
Watchdog Timer Peripheral Present (PPWD)
Base 0x400F.E000
Offset 0x300
Type RO, reset 0x0000.0003
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
P1
P0
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
1
1
Bit/Field
31:2
1
Name
reserved
P1
Type
RO
RO
Reset
0
0x1
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.
Watchdog Timer 1 Present
Value Description
0 Watchdog module 1 is not present.
1 Watchdog module 1 is present.
0
P0
RO
0x1
Watchdog Timer 0 Present
Value Description
0 Watchdog module 0 is not present.
1 Watchdog module 0 is present.
282
June 12, 2014
Texas Instruments-Production Data