KS57C2308/P2308/C2316/P2316MEMORY MAP

LMOD — LCD Mode Register

F8DH, F8CH

Bit

Identifier

RESET Value

Read/Write

Bit Addressing

7

6

5

4

3

2

1

0

.7

.6

.5

.4

.3

.2

.1

.0

 

 

 

 

 

 

 

 

0

0

0

0

0

0

0

0

W

W

W

W

W

W

W

W

8

8

8

8

1/8

8

8

8

.7–.6

LCD Output Segment and Pin Configuration Bits

 

0

0

Segments 24–27; and 28–31

 

 

 

 

 

0

1

Segment 24–27; 1-bit output at P8.4–P8.7

 

 

 

 

 

1

0

Segment 28–31; 1-bit output at P8.0–P8.3

 

 

 

 

 

1

1

1-bit output only at P8.0–P8.3, and P8.4–P8.7

 

 

 

 

.5–.4

LCD Clock (LCDCK) Frequency Selection Bits

 

0

0

fw/29

= 64 Hz

 

0

1

fw/28

= 128 Hz

 

1

0

fw/27

= 256 Hz

 

1

1

fw/26

= 512 Hz

 

NOTE: Assuming watch timer clock (fw) = 32.768 kHz.

.3–.0

Duty and Bias Selection for LCD Display

 

0

LCD display off

 

 

 

 

 

 

 

1

0

0

0

1/4 duty, 1/3 bias

 

 

 

 

 

 

 

1

0

0

1

1/3 duty, 1/3 bias

 

 

 

 

 

 

 

1

0

1

0

1/2 duty, 1/2 bias

 

 

 

 

 

 

 

1

0

1

1

1/3 duty, 1/2 bias

 

 

 

 

 

 

 

1

1

0

0

Static

 

 

 

 

 

 

4-19

Page 61
Image 61
Samsung KS57C2308 manual Lmod LCD Mode Register, F8DH, F8CH, LCD Clock Lcdck Frequency Selection Bits