AT91SAM9G46B-CU データシートの表示（PDF） - Atmel Corporation

部品番号

コンポーネント説明

メーカー

AT91SAM9G46B-CU

SMART ARM-based Embedded MPU

Atmel Corporation 

47.12.35 LCD Write Protect Mode Register

Name:

LCD_WPMR

Access: Read/Write

31

30

29

28

27

26

25

24

WPKEY

23

22

21

20

19

18

17

16

WPKEY

15

14

13

12

11

10

9

8

WPKEY

7

6

5

4

3

2

1

0

—

—

—

—

—

—

—

WPEN

• WPEN: Write Protect Enable

0: Disables the Write Protect if WPKEY corresponds to0x4C4344 (“LCD” in ASCII).

1: Enables the Write Protect if WPKEY corresponds to0x4C4344 (“LCD” in ASCII).

Protects the registers:

• “LCD Control Register 1” on page 1185

• “LCD Control Register 2” on page 1186

• “LCD Timing Configuration Register 1” on page 1188

• “LCD Timing Configuration Register 2” on page 1189

• “LCD Frame Configuration Register” on page 1190

• “LCD FIFO Register” on page 1191

• “LCDMOD Toggle Rate Value Register” on page 1192

• “Dithering Pattern DP1_2 Register” on page 1193

• “Dithering Pattern DP4_7 Register” on page 1194

• “Dithering Pattern DP3_5 Register” on page 1195

• “Dithering Pattern DP2_3 Register” on page 1196

• “Dithering Pattern DP5_7 Register” on page 1197

• “Dithering Pattern DP3_4 Register” on page 1198

• “Dithering Pattern DP4_5 Register” on page 1199

• “Dithering Pattern DP6_7 Register” on page 1200

• WPKEY: Write Protect Key

Should be written at value 0x4C4344 (“LCD” in ASCII). Writing any other value in this field aborts the write operation of the

WPEN bit. Always reads as 0.

SAM9G46 Series [DATASHEET]

Atmel-11028G-ATARM-SAM9G46-Datasheet_08-Dec-15

1211

Share Link: