Renesas RL78/G1H User Manual

RL78/G1H CHAPTER 6 CLOCK GENERATOR
R01UH0575EJ0120 Rev. 1.20 Page 100 of 920
Dec 22, 2016
Figure 6 - 1 Block Diagram of Clock Generator
(Remark is listed on the next page after next.)
Clock operation mode
control register
(CMC)
Clock operation status
control register
(CSC)
Internal bus
Oscillation stabilization time select register (OSTS)
System clock control register (CKC)
AMPH EXCLK
OSCSEL
MSTOP
OSTS2 OSTS1 OSTS0
3
CSS
CLS
MCS
MCM0
Standby controller
STOP mode
HALT mode
Normal
operation mode
MOST
18
MOST
17
MOST
15
MOST
13
MOST
11
MOST
10
MOST
9
MOST
8
Oscillation stabilization time counter status register (OSTC)
X1 oscillation
stabilization time counter
STOP mode signal
X1/P121
X2/EXCLK
/P122
fX
fEX
High-speed system
clock oscillator
Crystal/ceramic
oscillation
External input
clock
fMX
Option byte (000C2H)
FRQSEL0 to FRQSEL3
1/2
f
IH
Main system clock
source selector
f
MAIN
Option byte (000C0H) WDTON
WDSTBYON
WUTMMCK0
HAL/STOP mode signal
WUTMMCK0
fIL
(15 kHz (TYP.))
Low-speed on-chip
oscillator
Selector
Real-time clock, 12-bit interval timer
Controller
Controller
Timer RJ
Timer array unit 0 Serial array unit 0 Serial interface IICA1 Serial interface IICA0 A/D converter
Serial array unit 1 DTC Timer RJ Timer array unit 1
CPU
CPU clock
and peripheral
hardware
clock source
selection
fCLK
Watchdog timer, channel 1 of timer array unit
Timer RJ
XT1/P123
XT2/EXCLKS
/P124
fXT
fEXS
Crystal
oscillation
External input
clock
Subsystem clock
oscillator
f
SUB
CLS
6
OSCSELS
EXCLKS
AMPHS0
AMPHS1
HOCODIV0HOCODIV1HOCODIV2
HIOSTOP
XTSTOP
HIOTRM0
HIOTRM1HIOTRM2HIOTRM3HIOTRM4
HIOTRM5
WUTMM
CK0
RTCLPC
SAU0
EN
SAU1
EN
IICA0
EN
ADC
EN
TAU1
EN
RTC
EN
TAU0
EN
IICA1
EN
TRJ0
EN
DTC
EN
High-speed on-chip oscillator trimming register (HIOTRM)
Internal bus
Subsystem clock supply mode control register (OSMC)
Clock operation status control register (CSC)
High-speed on-chip
oscillator frequency select
register (HOCODIV)
Clock operation mode
control register
(CMC)
Peripheral enable register 0 (PER0)
Peripheral enable register 1 (PER1)
Controller
Clock output/ buzzer output
Selector
High-speed on-chip oscillator
(32 MHz (TYP.)) (24 MHz (TYP.)) (16 MHz (TYP.))
(8 MHz (TYP.))
(12 MHz (TYP.))
(6 MHz (TYP.))
(4 MHz (TYP.)) (2 MHz (TYP.))
(3 MHz (TYP.)) (1 MHz (TYP.))
Selector

Renesas RL78/G1H Specifications

General

Brand	Renesas
Model	RL78/G1H
Category	Microcontrollers
Language	English