Datasheet > APU0071

APU0071

更新时间： 2022-04-23 23:00:11

品牌	Logo	应用领域
茂达 - ANPEC		控制器
页数	文件大小	规格书
28页	501K
描述
80 Segment / 16 Common Controller for Dot Matrix LCD

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APU0071 数据手册

APU0071

4. DISPLAY DATA RAM (DDRAM)

DDRAM stores 8bits character code in CGROM / CGRAM and its maximum number is 32 (32 Characters)

. DDRAM address is set by the address counter (AC) as a hexadecimal number.

MSB

AC6

LSB

AC5

HEX

AC4

AC3

AC2

AC1

AC0

HEX

4-1. DDRAM addressing mode 0 (A = 0) (1 Line)

In this addressing mode, the address range of DDRAM is 00H ~ 0FH.

10 11 12 13 14 15 16

Display Position

DDRAM Address

00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F

COM1~COM8

COM9~COM16

10 11 12 13 14 15 16

01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F 00

After shift left

COM1~COM8

COM9~COM16

10 11 12 13 14 15 16

0F 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E

After shift right

COM1~COM8

COM9~COM16

4-2. DDRAM addressing mode 1 (A = 1) (2 Line)

In this addressing mode, the address range of DDRAM is 00H ~ 0FH and 40H ~ 4FH.

10 11 12 13 14 15 16

00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F

10 11 12 13 14 15 16

40 41 42 43 44 45 46 47 48 49 4A 4B 4C 4D 4E 4F

10 11 12 13 14 15 16

COM1

COM8

Display Position

DDRAM Address

COM9

COM16

Display Position

DDRAM Address

COM1

COM8

01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F 40

10 11 12 13 14 15 16

After shift left

COM9

41 42 43 44 45 46 47 48 49 4A 4B 4C 4D 4E 4F 00

COM16

10 11 12 13 14 15 16

COM1

COM8

01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E

10 11 12 13 14 15 16

After shift right

COM9

COM16

41 42 43 44 45 46 47 48 49 4A 4B 4C 4D 4E

Rev. A.07 - FEB., 2002

www.anpec.com.tw

1...4 5 678 9 10...28

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