tmp19a44fda TOSHIBA Semiconductor CORPORATION, tmp19a44fda Datasheet - Page 485

• Manufacturer Part Number: tmp19a44fda
• Description: 32bit Tx System Risc
• Manufacturer: TOSHIBA Semiconductor CORPORATION

WDMOD
0xFF00_4F00
WDCR
(0xFF00_4F04)
Watchdog Timer
bit Symbol
Read/Write
After reset
Function
bit Symbol
Read/Write
After reset
Function
SYSCR1
clock gear
value
<GEAR2:0>
000 （fc）
100 (fc/2)
101 (fc/4)
110 (fc/8)
111 (fc/16)
Detection time of watchdog timer
(Runaway Detection Timer)
1: Enable
WDT
control
B1H : WDT disable code
4EH : WDT clear code
WDTE
R/W
7
1
7
13.11 ms
Fig. 18.5 Watchdog Timer Control Register
0.82 ms
1.64 ms
3.28 ms
6.55 ms
Fig. 18.4 Watchdog Timer Mode Register
000
Selects WDT detection time
000: 2
001: 2
010: 2
011: 2
100: 2
101: 2
110: Setting prohibited
111: Setting prohibited
WDTP2
6
6
0
16
18
20
22
24
26
/f
/f
/f
/f
/f
/f
SYS
SYS
SYS
SYS
SYS
SYS
WDTP1
13.11 ms
26.21 ms
52.43 ms
6.55 ms
3.28 ms
TMP19A44(rev0.3) 18-4
R/W
001
5
5
0
Detection Time of Watchdog Timer
WDTP0
104.86 ms
209.72 ms
4
4
0
13.11 ms
26.21 ms
52.43 ms
WDMOD<WDTP2:0>
010
⎯
W
⎯
"0" is
read.
Enable/disable control of the watchdog timer
Watchdog timer out control
3
R
3
0
1
0
1
@ fc = 80 MHz
104.86 ms
209.72 ms
419.43 ms
838.86 ms
52.43 ms
Others
B1H
4EH
011
Generates NMI interrupt
Connects WDTOUT to reset
Disable
Enable
1: Start
IDLE
0: Stop
I2WDT
Disable & clear of WDT
2
0
2
R/W
209.72 ms
419.43 ms
838.86 ms
0:
Generate
NMI
interrupt
1:
Internally
connect
WDT
output to
reset pin
Disable code
Clear code
⎯
TMP19A44
RESCR
100
1.68 s
3.36 s
1
1
1
Write
"0."
2010-04-01
R/W
0
0
0
101
13.42 s
0.84 s
1.68 s
3.36 s
6.71 s