566
15.1.3
Pin Configuration
Table 15-1 describes the WDT output pin.
Table 15-1 WDT Pin
Name
Symbol
I/O
Function
Watchdog timer overflow
WDTOVF
Output
Outputs counter overflow signal in watchdog
timer mode
Buzzer output
BUZZ
Output
Outputs clock selected by watchdog timer
(WDT1)
15.1.4
Register Configuration
Table 15-2 summarizes the WDT register configuration. These registers control clock selection,
WDT mode switching, and the reset signal.
Table 15-2 WDT Registers
Address
*
1
Channel Name
Abbreviation R/W
Initial Value Write
*
2
Read
0
Timer control/status register 0 TCSR0
R/(W)
*
3
H'18
H'FF74
H'FF74
Timer counter 0
TCNT0
R/W
H'00
H'FF74
H'FF75
Reset control/status register
RSTCSR
R/(W)
*
3
H'1F
H'FF76
H'FF77
1
Timer control/status register 1 TCSR1
R/(W)
*
3
H'00
H'FFA2 H'FFA2
Timer counter 1
TCNT1
R/W
H'00
H'FFA2 H'FFA3
All
Pin function control register
PFCR
R/W
H'0D/H'00
H'FDEB
Notes: 1. Lower 16 bits of the address.
2. For details of write operations, see section 15.2.4, Notes on Register Access.
3. Only a write of 0 is permitted to bit 7, to clear the flag.
Содержание H8S/2631
Страница 28: ...xviii Appendix G Package Dimensions 1154 ...
Страница 341: ...316 Transfer SAR or DAR DAR or SAR Block area First block Nth block Figure 9 8 Memory Mapping in Block Transfer Mode ...
Страница 918: ...905 ø DREQ0 DREQ1 tDRQS tDRQH Figure 25 19 DMAC DREQ Input Timing ...
Страница 955: ...943 A 2 Instruction Codes Table A 2 shows the instruction codes ...