UPD17708 datasheet(74/358 Pages) RENESAS

74 / 358 page

µPD17704, 17705, 17707, 17708, 17709

Table 8-1. Peripheral Hardware Control Functions of Control Registers (3/8)

Peripheral

Control Register

Peripheral Hardware Control Function

At Reset

Clock

Hardware

Name

Address

Read/

Function

Set value

Power- WDT

Stop

Write

Symbol

& SP

reset

Serial

Serial I/O0

0FH

R/W

SIO0CH

Selects serial I/O0 mode

0000

interface mode selection

SIO0MS

Sets master/slave

Slave operation Master operation

SIO0TX

Sets transfer direction

Reception

Transmission

Serial I/O1

1DH

R/W

SIO1TS

Starts or stops operation

Stops operation Starts operation

0000

mode selection

SIO1HIZ

Sets status of P0B1/SO1 pin

General-purpose

Serial data

I/O port

output pin

SIO1CK1

Sets I/O clock

SIO1CK0

PLL

PLL mode

10H

R/W

PLLSCNF

Sets low-order bits of swallow counter

Lowest bit is 0 Lowest bit is 1

UURR

frequency

selection

Fixed to “0”

0000

synthesizer

PLLMD1

Sets division mode of PLL

PLLMD0

PLL reference

11H

R/W

PLLRFCK3

Sets reference frequency of PLL

FFFF

frequency

PLLRFCK2

selection

PLLRFCK1

PLLRFCK0

PLL unlcok FF

12H

R &

Fixed to “0”

Undefined Undefined

Retained Retained

Reset 0

PLLUL

Detects status of unlock FF

Locked

Unclocked

BEEP

BEEP/general-

13H

R/W

Fixed to “0”

0000

purpose port pin

function selection

BEEP1SEL Selects function of P1D1/BEEP1 pin General-purpose

BEEP

BEEP0SEL Selects function of P1D0/BEEP0 pin

I/O port

BEEP clock

14H

R/W

BEEP1CK1 Sets output frequency of BEEP1

0000

selection

BEEP1CK0

BEEP0CK1 Sets output frequency of BEEP0

BEEP0CK0

U: Undefined

R: Retained

0011

Not

I2C

2-wire

3-wire

used

mode

0101

0: 1.25 kHz 1: 2.5 kHz

2: 5 kHz

3: 10 kHz

4: 6.25 kHz 5: 12.5 kHz

6: 25 kHz

7: 50 kHz

8: 3 kHz

9: 9 kHz

A: 18 kHz

B: Setting prohibited

C: 1 kHz

D: 20 kHz

E: Setting prohibited

F: PLL disabled

011

Disabled

VHF

101

0011

4 kHz

3 kHz

200 Hz

67 Hz

0101

0011

1 kHz

3 kHz

4 kHz

6.7 kHz

0101

0011

External 187.50

375.00

46.875

clock

kHz

0101

UPD17708 Datasheet(PDF) 74 Page - Renesas Technology Corp

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