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RL78/D1A User's Manual: Hardware - Renesas

RL78/D1A User's Manual: Hardware - Renesas

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Under development<br />

Preliminary document<br />

Specifications in this document are tentative and subject to change.<br />

<strong>RL78</strong>/<strong>D1A</strong> CHAPTER 5 CLOCK GENERATOR<br />

Figure 5-1. Block Diagram of Clock Generator<br />

Internal bus<br />

FMP clock division selection<br />

register (MDIV)<br />

System clock control<br />

register (CKC)<br />

Oscillation stabilization<br />

time select register (OSTS)<br />

Clock operation status<br />

control register<br />

(CSC)<br />

Clock operation mode<br />

control register<br />

(CMC)<br />

MD<br />

IV0<br />

MD<br />

IV1<br />

MD<br />

IV2<br />

CLS CSS MCS MCM0<br />

OSTS1 OSTS0<br />

OSTS2<br />

MSTOP<br />

EXCLK OSCSEL<br />

AMPH<br />

Standby controller<br />

3<br />

STOP mode<br />

3<br />

X1 oscillation<br />

stabilization time counter<br />

HALT mode<br />

STOP mode<br />

signal<br />

Normal<br />

operation mode<br />

MOST<br />

18<br />

MOST<br />

17<br />

MOST<br />

15<br />

MOST<br />

13<br />

MOST<br />

11<br />

MOST<br />

10<br />

MOST<br />

9<br />

MOST<br />

8<br />

High-speed system<br />

clock oscillator<br />

X1/P121<br />

Oscillation stabilization<br />

time counter status<br />

register (OSTC)<br />

fX<br />

Crystal/ceramic<br />

oscillation<br />

fMX<br />

X2/EXCLK<br />

/P122<br />

fEX<br />

External input<br />

clock<br />

CAN controller<br />

LCD controller/driver<br />

Option byte (000C2H)<br />

FRQSEL0 to FRQSEL3<br />

High-speed on-chip oscillator<br />

CPU, DMA<br />

fCLK<br />

CAN controller<br />

Clock output/<br />

buzzer output<br />

fMP/25 fMP/24 Main system clock<br />

source selector<br />

fMAIN fMP<br />

PLL<br />

(see Figure 5-2)<br />

RTC,<br />

Interval timer<br />

RTC,<br />

Interval timer<br />

High-speed on-chip<br />

oscillation (24MHz (TYP.))<br />

High-speed on-chip<br />

oscillation (32 MHz (TYP.))<br />

Timer array unit 0<br />

Timer array unit 1<br />

Timer array unit 2<br />

Serial array unit 0<br />

Serial array unit 1<br />

LIN-UART0<br />

LIN-UART1<br />

A/D converter<br />

Sound generator<br />

Stepper motor<br />

controller/driver<br />

RTC<br />

CPU clock<br />

and peripheral<br />

hardware<br />

clock source<br />

selection<br />

Selector<br />

fMP/23 fMP/22 fIH<br />

High-speed on-chip<br />

oscillation (8 MHz (TYP.))<br />

High-speed on-chip<br />

oscillation (16 MHz (TYP.))<br />

fMP/2<br />

Prescaler<br />

Option byte (000C0H)<br />

WDTON<br />

WDSTBYON<br />

High-speed on-chip<br />

oscillation (4 MHz (TYP.))<br />

R01UH0317EJ0004 Rev. 0.04 270<br />

Feb. 22, 2013<br />

Controller<br />

fMP<br />

HALT/STOP mode signal<br />

Low-speed on-chip<br />

oscillator<br />

Low-speed on-chip fIL<br />

oscillation (15 kHz (TYP.))<br />

Watchdog timer<br />

LCD controller/driver<br />

RTC<br />

Internal timer<br />

Clock output/buzzer output<br />

LCD controller/driver<br />

RTC<br />

Interval timer<br />

Subsystem clock<br />

oscillator<br />

fSUB<br />

XT1/P123<br />

fXT<br />

Crystal<br />

oscillation<br />

XT2/P124<br />

6<br />

CLS<br />

SGEN<br />

MTRCEN<br />

ADCEN<br />

TAU0<br />

EN<br />

TAU1<br />

EN<br />

TAU2<br />

EN<br />

SAU0<br />

EN<br />

SAU1<br />

EN<br />

LIN0<br />

EN<br />

LIN1<br />

EN<br />

RTC<br />

EN<br />

HIOTRM5 HIOTRM4 HIOTRM3 HIOTRM2 HIOTRM1 HIOTRM0<br />

XTSTOP HIOSTOP<br />

HOCODIV2 HOCODIV1 HOCODIV0<br />

OSCSELS<br />

AMPHS0<br />

AMPHS1<br />

Peripheral enable<br />

register 1 (PER1)<br />

Peripheral enable<br />

register 0 (PER0)<br />

High-speed on-chip oscillator<br />

trimming register(HIOTRM)<br />

Clock operation<br />

status control<br />

register (CSC)<br />

High-speed on-chip<br />

oscillator frequency select<br />

register (HOCODIV)<br />

Clock operation mode<br />

control register<br />

(CMC)<br />

Internal bus<br />

(Remark is listed on the next page after next.)

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