r8a77850anbg Renesas Electronics Corporation., r8a77850anbg Datasheet - Page 797

• Manufacturer Part Number: r8a77850anbg
• Description: Renesas 32-bit Risc Microcomputer Superh? Risc Engine Family
• Manufacturer: Renesas Electronics Corporation.

16.3.4
WDTCNT is a 32-bit read-only register comprising a 12-bit counter that is incremented by the
WDTBCNT overflow signal. When WDTCNT overflows, a reset of the selected type is initiated
in watchdog timer mode, or an interrupt is generated in interval timer mode.
WDTCNT is only reset by a power-on reset. Writing to this register is invalid.
Initial value:
Initial value:
Bit
31 to 12
11 to 0
R/W:
R/W:
Bit:
Bit:
Watchdog Timer Counter (WDTCNT)
Bit Name
⎯
WDTCNT
31
15
⎯
⎯
R
R
0
0
30
14
⎯
⎯
R
R
0
0
29
13
⎯
⎯
R
R
0
0
Initial
Value
All 0
All 0
28
⎯
12
⎯
R
R
0
0
R/W
R
R
27
⎯
11
R
R
0
0
26
10
⎯
R
R
0
0
Description
Reserved
These bits are always read as 0. The write value
should always be 0.
Counter value
25
⎯
R
R
0
9
0
24
⎯
R
R
0
8
0
23
⎯
R
R
0
7
0
Rev.1.00 Jan. 10, 2008 Page 767 of 1658
WDTCNT
22
⎯
R
R
0
6
0
16. Watchdog Timer and Reset (WDT)
21
⎯
R
R
0
5
0
20
⎯
R
R
0
4
0
19
⎯
R
R
0
3
0
REJ09B0261-0100
18
⎯
R
R
0
2
0
17
⎯
R
R
0
1
0
16
⎯
R
R
0
0
0