upd78f0730 Renesas Electronics Corporation., upd78f0730 Datasheet - Page 83
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upd78f0730
Manufacturer Part Number
upd78f0730
Description
8-bit Single-chip Microcontroller
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.UPD78F0730.pdf
(518 pages)
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X2/EXCLK
X1/P121
/P122
Clock operation mode
select register
(OSCCTL)
AMPH
Crystal/ceramic
External input
High-speed system
oscillation
clock oscillator
clock
EXCLK OSCSEL
f
f
EXCLK
X
f
XH
control register
(16 MHz (TYP.))
speed oscillator
Internal high-
Main OSC
(MOC)
f
MSTOP
RH
f
f
XH
XH
/2
/4
Main clock
mode register
(MCM)
STOP
USB clock
XSEL
switch
Figure 5-1. Block Diagram of Clock Generator
register (RCM)
PLL control
MCS
PLLM
PLL
PLLSTOP
Prescaler
MOST
stabilization time counter
USB clock control
11
OSTS2
register (UCKC)
MOST
X1 oscillation
13
Internal bus
OSTS1 OSTS0
MOST
14
Internal bus
3
MOST
Oscillation stabilization
time select register (OSTS)
15
UCKCNT
MOST
16
Oscillation
stabilization
time counter
status register
(OSTC)
Internal oscillation
Controller
mode register
f
USB
RSTS
(RCM)
LSRSTOP
Main system
clock switch
clock switch
Peripheral
hardware
XSEL
RSTOP
MCM0
Main clock mode
register (MCM)
f
XP
Option byte
1: Cannot be stopped
0: Can be stopped
CSS PCC2 PCC1 PCC0
f
XP
2
f
2
XP
Prescaler
2
4
f
2
XP
Processor clock control
register (PCC)
3
(240 kHz (TYP.))
speed oscillator
Internal low-
f
2
XP
4
f
RL
Peripheral
hardware
clock (f
CPU clock
(f
USB clock
(f
Watchdog timer,
8-bit timer H1
CPU
USB
)
)
PRS
)
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