WDTQn
Q6
16-bit
Counter
CLK
01
00
PUC
SMCLK
ACLK
Clear
Password
Compare
0
0
0
0
1
1
1
1
WDTCNTCL
WDTTMSEL
WDTSSEL0
WDTSSEL1
WDTIS1
WDTIS2
WDTIS0
WDTHOLD
EQU
EQU
Write Enable
Low Byte
R / W
MDB
LSB
MSB
WDTCTL
(Asyn)
Int.
Flag
Pulse
Generator
VLOCLK
Clock
Request
Logic
X_CLK request
SMCLK request
ACLK request
VLOCLK request
10
11
Q9
Q13
Q15
Q19
Q23
Q27
Q31
X_CLK
11
10
01
00
11
10
01
00
0
1
16-bit
Counter
CLK
32-bit WDT extension
WDT_A Introduction
637
SLAU367P – October 2012 – Revised April 2020
Copyright © 2012–2020, Texas Instruments Incorporated
Watchdog Timer (WDT_A)
Figure 24-1. Watchdog Timer Block Diagram