Watch Timer Block Diagram - NEC PD78052 User Manual

TMC21
Clear
7
f /2
XX
f
W
Prescaler
f
XT
f f
W W
4 5
2 2
TCL24
Timer Clock
Select Register 2
CHAPTER 10 WATCH TIMER
Figure 10-1. Watch Timer Block Diagram
f
f f f
W
W W W
7
6 8 9
2
2 2 2
3
TMC26 TMC25 TMC24 TMC23 TMC22 TMC21 TMC20
Internal Bus
f
W
14
2
5-Bit Counter
Clear
f
W
13
2
Watch Timer Mode
Control Register
INTWT
INTTM3
To 16-Bit Timer/
Event Counter
243