HD6412332 RENESAS [Renesas Technology Corp], HD6412332 Datasheet - Page 611

• Manufacturer Part Number: HD6412332
• Description: Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2300 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

13.1.3
Table 13.1 describes the WDT output pin.
Table 13.1 WDT Pin
Name
Watchdog timer overflow
13.1.4
The WDT has three registers, as summarized in table 13.2. These registers control clock selection,
WDT mode switching, and the reset signal.
Table 13.2 WDT Registers
Name
Timer control/status register
Timer counter
Reset control/status register
Notes: 1. Lower 16 bits of the address.
2. For details of write operations, see section 13.2.4, Notes on Register Access.
3. Only a write of 0 is permitted to bit 7, to clear the flag.
Pin Configuration
Register Configuration
Symbol
WDTOVF
TCNT
Abbreviation
TCSR
RSTCSR
I/O
Output
R/W
R/(W) *
R/W
R/(W) *
Function
Outputs counter overflow signal in watchdog
timer mode
Rev.4.00 Sep. 07, 2007 Page 581 of 1210
3
3
Initial Value
H'18
H'00
H'1F
Write *
H'FFBC
H'FFBC
H'FFBE
REJ09B0245-0400
Address *
2
Read
H'FFBC
H'FFBD
H'FFBF
1