Chapter 4 Timer Functions
57
Overview
fs
fs/4
fx
TM2IO
input
MUX
MUX MUX
MUX
Synchro-
nization
MUX
MUX
MUX
MUX
MUX
MUX
Synchro-
nization
MUX
fosc
f s/4
f s/16
TM3IO input
TM2OC
TM3CK0
TM3CK1
TM3CK2
TM2CK0
TM2CK1
TM2CK2
TM2PWM
TM2EN
TM3PWM
TM3EN
TM3OC
TM3MD
TM2MD
TM3IRQ
TM3IO output/
PWM2/
Remote control
carrier output/
Serial transfer
clock output
TM2IRQ
TM2IO output/PWM2
RST input
TM2BC TM3BC
1/2
1/2
Read/Write
Read
Read/Write
Read
R R
RQ
S
Compare register
8-bit counter
Compare register
8-bit counter
Match Match
0
7
0
7
Figure 4-1-1 Timers 2, 3 Block Diagram