SM5320A

SEIKO NPC CORPORATION —13

Slave Address

The 7-bit slave address is selected using the ADS pin. When ADS = “L” the address is 48h (1001000b), when

ADS = “H” the address is 49h (1001001b), and when ADS = “Z” (open) the address is 4Ah (1001010b). A

independently by setting the slave address of each using the ADS pin. When writing to control register, send

sub address of control register following slave address.

Control Register

The SM5320A has a 4-byte control register.

SLAVE ADDRESS for control register write (1st byte)

bit7

bit6

bit5

bit4

bit3

bit2

bit1

bit0

(Hex)

Description

Name

SLAVE ADDRESS

R/W

Value

10010000

90h

Indicate to write when device's slave

address is 48h (ADS = "L")

10010010

92h

Indicate to write when device's slave

address is 49h (ADS = "H")

10010100

94h

Indicate to write when device's slave

address is 4Ah (ADS = "Z")

SUB ADDRESS for control register write (2nd byte)

bit7

bit6

bit5

bit4

bit3

bit2

bit1

bit0

(Hex)

Description

Name

SUB ADDRESS

Value

00000000

00h

Indicate to write control register 00h

00000001

01h

Indicate to write control register 01h

00000010

02h

Indicate to write control register 02h

00000011

03h

Indicate to write control register 03h

Sub

Addr.

Register assign

default

Description

bit7

bit6

bit5

bit4

bit3

bit2

bit1

bit0

(Hex)

00h

FCM

FC6

FC5

FC4

FC3

FC2

FC1

FC0

00h

OUT1 to OUT3 fc control

01h

CB5

CB4

CB3

CB2

CB1

CB0

BYP

–

00h

OUT1 to OUT3 input method and filter

bypass setting

02h

PD

HALF

GS15

GS14

GS13

GS12

GS11

GS10

00h

OUT1 to OUT3 gain control

03h

–

–

GS25

GS24

GS23

GS22

GS21

GS20

00h

YOUT, COUT gain control