Register Configuration - Hitachi H8/3664 Hardware Manual

12.1.4

Register Configuration

Table 12.3 summarizes the timer W registers.
Table 12.3 Timer W Registers
Name
Timer mode register W
Timer control register W
Timer interrupt enable register W
Timer status register W
Timer I/O control register 0
Timer I/O control register 1
Timer counter
General register A
General register B
General register C
General register D
Notes: 1. Only 0 can be written to clear the flags.
2. Must be always read or written in 16-bit units; 8-bit access is not allowed.
Abbreviation R/W
TMRW R/W
TCRW R/W
TIERW R/W
TSRW R/(W)*
TIOR0 R/W
TIOR1 R/W
TCNT R/W
GRA R/W
GRB R/W
GRC R/W
GRD R/W
Initial Value
H'48
H'00
H'70
1
H'70
H'88
H'88
H'0000
H'FFFF
H'FFFF
H'FFFF
H'FFFF
Address
H'FF80
H'FF81
H'FF82
H'FF83
H'FF84
H'FF85
2
H'FF86*
2
H'FF88*
2
H'FF8A*
2
H'FF8C*
2
H'FF8E*
195