
HD404629R Series
62
The block diagram of timer B is shown in figure 45.
2
3
4
4
4
Timer B ineterrupt
request flag
(IFTB)
(TCBL)
(TCBU)
Timer read
register BU
(TRBU)
I
Timer read
register BL
(TRBL)
Timer counter B
Timer counter B
(TWBL)
(TWBU)
F
Timer mode
register B1
(TMB1)
Timer output
control
Timer mode
register B2
(TMB2)
Data bus
Clock line
Signal line
S
O
P
(
System
clock
÷
2
÷
4
÷
8
÷
32
÷
128
÷
512
÷
2048
Timer output
control logic
TOB
EVNB
φ
PER
Figure 45 Block Diagram of Timer B