PT6301(2012) Просмотр технического описания (PDF) - Princeton Technology

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PT6301
(Rev.:2012)

5 x 7 Dot Character x 20-Digit x 2-Line Display Controller/Driver with Character RAM

Princeton Technology 

PT6301

DESCRIPTION OF COMMANDS AND FUNCTIONS

1 AND 9. DCRAM DATA WRITE

(Write the character code of CGROM and CGRAM to DCRAM)

DCRAM (Data Control RAM) has 20 address x 8-bit RAM to store character code of CGROM and CGRAM. Address

00H(0) to 13H(19) corresponds to COM1 to 20. The character code stored in DCRAM is CONVERTED TO A 5 x 7 dot

matrix character pattern via CGROM or CGRAM.

The DCRAM can store 20 characters. This command writes data from DCRAM address 00H.

COMMAND FORMAT

MSB

1st Byte

(1st)

B7 B6 B5 B4 B3 B2

0/1 0 0

1

*

*

Note: 0: Select DCRAM_A, 1: Select DCRAM_B

LSB

B1 B0 Select DCRAM data write mode

*

* (RAM address is set to 00H automatically)

MSB

LSB

2nd Byte B7 B6 B5 B4 B3 B2 B1 B0 Specifies character code of CGRAM and CGROM

(2nd)

C7 C6 C5 C4 C3 C2 C1 C0 (written into DCRAM address 00H)

To specify the character code of CGROM and CGRAM continuously to the next address, specify only character code as

follows. The address of DCRAM is automatically incremented.

MSB

LSB

2nd Byte B7 B6 B5 B4 B3 B2 B1 B0 Specifies character code of CGRAM and CGROM

(3rd)

C7 C6 C5 C4 C3 C2 C1 C0 (written into DCRAM address 01H)

MSB

LSB

2nd Byte

(4th)

B7 B6 B5

C7 C6 C5

B4 B3 B2 B1 B0 Specifies character code of CGRAM and CGROM

C4 C3 C2 C1 C0 (written into DCRAM address 02H)

:

:

MSB

LSB

2nd Byte B7 B6 B5 B4 B3 B2 B1 B0 Specifies character code of CGRAM and CGROM

(21th)

C7 C6 C5 C4 C3 C2 C1 C0 (written into DCRAM address 13H)

MSB

LSB

2nd Byte

(22th)

B7 B6 B5

C7 C6 C5

B4 B3 B2 B1 B0 Specifies character code of CGRAM and CGROM

C4 C3 C2 C1 C0 (written into DCRAM address 00H)

C0 (LSB) to C7 (MSB): Character code of CGROM and CGRAM (8 bits 256 characters)

*: Don’t care.

COM POSITIONS AND DCRAM ADDRESSES

DCRAM address

(HEX)

COM position

00H

COM1

01H

COM2

02H

COM3

03H

COM4

04H

COM5

05H

COM6

06H

COM7

07H

COM8

08H

COM9

09H

COM10

DCRAM address

(HEX)

0AH

0BH

0CH

0DH

0EH

0FH

10H

11H

12H

13H

COM position

COM11

COM12

COM13

COM14

COM15

COM16

COM17

COM18

COM19

COM20

V1.2

9

March 2012

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