CHAPTER 5 CLOCK GENERATOR
User’s Manual U16899EJ2V0UD
110
Figure 5-1. Block Diagram of Clock Generator
X1
X2
f
XP
f
XT
FRC
XT1
XT2
f
X
2
2
STOP
MSTOP
f
X
2
3
f
X
2
4
f
X
2
4
RSTOP
CSS PCC2
CLS
MCM0
MCS
CLS
MCC
OSTS1 OSTS0
OSTS2
1/2
3
MOST
16
MOST
15
MOST
14
MOST
13
MOST
11
C
P
U
f
R
f
X
PCC1 PCC0
High-speed
system clock
oscillator
Internal bus
Ring-OSC mode
register (RCM)
Main OSC
control
register
(MOC)
Internal bus
Ring-OSC
oscillator
Option byte (RINGOSC)
1: Cannot be stopped
0: Can be stopped
CPU clock
(f
CPU
)
Controller
Processor clock
control register
(PCC)
Main clock
mode register
(MCM)
Oscillation stabilization
time counter
Oscillation
stabilization time
select register
(OSTS)
Oscillation
stabilization
time counter
status
register
(OSTC)
Clock to peripheral
hardware
Prescaler
Operation
clock switch
8-bit timer H1,
watchdog timer
Prescaler
Prescaler
Selector
Subsystem
clock oscillator
Watch clock,
clock output
function
f
CPU
Control signal
Содержание MuPD78F0132H
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