SC16313

HANGZHOU MICROELECTRONICS CO.,LTD

REV:1.2

2003.08.28

Http: www.silan.com.cn

Page 4 of 10

FUNCTION DESCRIPTION

DISPLAY RAM ADDRESS

Data transmitted from an external device to SC16313 via the serial interface are stored in the display RAM

and are assigned addresses. The RAM addresses of SC16313 are given below in 8 bits unit.

SG1

SG4 SG5

SG8 SG9

SG12

00HL

00HU

01HL

GR1

02HL

02HU

03HL

GR2

04HL

04HU

05HL

GR3

06HL

06HU

07HL

GR4

08HL

08HU

09HL

GR5

0AHL

0AHU

0BHL

GR6

0CHL

0CHU

0DHL

GR7

0EHL

0EHU

0FHL

GR8

b0

b3

b4

b7

XX HL

XX HU

Lower 4 bits

Higher 4 bits

Only the lower 4 bits of the addresses assigned to SG9 through SG12 are valid, and the higher 4 bits are

ignored.

SC16313 KEY MATRIX & KEY INPUT DATA STORAGE RAM

SC16313 key matrix consists of 8 x 2 arrays as shown below:

KEY1

KEY2

The data of each key is stored in key-input data RAM as illustrated below. They are read by a READ

command, starting from the least significant bit. When the most significant bit of the data (SG8, b7) has been

read, then the least significant bit of the next data (SGI, b0) will be read.

SG1/KS1

SG5/KS5

SG2/KS2

SG3/KS3

SG4/KS4

SG6/KS6

SG7/KS7

SG8/KS8

b6

b7

b0

b1 b2

b3 b4

b5

Reading

sequence

KEY2

KEY1

KEY2

KEY1

KEY2

KEY1

KEY2

KEY1

COMMANDS

Commands set the display mode and status of SC16313. The first byte (b0 to b7) inputted to SC16313 via

the DIN pin after STB pin has fallen is regarded as a command. If for some reason the STB pin is made

“HIGH” while data or commands are being transmitted, the serial communication is initialized, and the