HD6432646 Hitachi, HD6432646 Datasheet - Page 450

• Manufacturer Part Number: HD6432646
• Description: (HD64F264x Series) 16-Bit Microcomputer
• Manufacturer: Hitachi

12.1.3
There are no pins related to the WDT.
12.1.4
The WDT has five registers, as summarized in table 12-1. These registers control clock selection,
WDT mode switching, and the reset signal.
Table 12-1 WDT Registers
Channel Name
0
1
Notes: *1 Lower 16 bits of the address.
416
*2 For details of write operations, see section 12.2.4, Notes on Register Access.
*3 Only a write of 0 is permitted to bit 7, to clear the flag.
Pin Configuration
Register Configuration
Timer control/status register 0 TCSR0
Timer counter 0
Reset control/status register
Timer control/status register 1 TCSR1
Timer counter 1
Abbreviation R/W
TCNT0
RSTCSR0
TCNT1
R/(W)
R/W
R/(W)
R/(W)
R/W
*3
*3
*3
Initial Value Write
H'18
H'00
H'1F
H'00
H'00
H'FF74 H'FF74
H'FF74 H'FF75
H'FF76 H'FF77
H'FFA2 H'FFA2
H'FFA2 H'FFA3
Address
*2
Read
*1