Hitachi H8/3692 Manual De Usuario
Rev. 1.0, 07/01, page 132 of 372
ø
W
TMOW
ø
ø
W
/32
ø
W
/16
ø
W
/8
ø
W
/4
ø
W
/32
ø
W
/16
ø
W
/8
ø
W
/4
ø/8192, ø/4096,
ø/2048, ø/512,
ø/256, ø/128,
ø/32, ø/8
ø/2048, ø/512,
ø/256, ø/128,
ø/32, ø/8
ø
W
/128
ø
W
/4
1/4
PSW
PSS
TMA
TCA
IRRTA
÷
8
*
÷
64
*
÷
128
*
÷
256
*
Legend
TMA:
TMA:
Timer mode register A
TCA:
Timer counter A
IRRTA: Timer A overflow interrupt request flag
PSW:
PSW:
Prescaler W
PSS:
Prescaler S
Note:
*
Can be selected only when the prescaler W output (øW/128) is used as the TCA input clock.
Internal data bus
Figure 10-1 Block Diagram of Timer A
10.2
Input/Output Pins
Table 10-1 shows the timer A input/output pin.
Table 10-1 Pin Configuration
Name
Abbrev.
I/O
Function
Clock output
TMOW
Output
Output of waveform generated by timer A output
circuit
10.3
Register Descriptions
Timer A has the following registers. For details on register addresses and register states during
each process, refer to section 19, Internal I/O Registers.
each process, refer to section 19, Internal I/O Registers.
•
Timer mode register A(TMA)
•
Timer counter A(TCA)