MAS9191EB MAS, MAS9191EB Datasheet - Page 8

• Manufacturer Part Number: MAS9191EB
• Description: EVALUATION BOARD
• Manufacturer: MAS

CONNECTOR DESCRIPTION
Connector name
RAM MEMORY
0-7FFFH
0-7FFFH
P7
P8
P3
The digital output port at address 0x1FFE.
RS-232-C interface.
FLASH
8000H
8000H
Pin
10
11
12
13
14
10
20
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
2
3
7
Function
LCD connector. The HD44780 LCD controller command register exits at
address 0x1FFC and the data register is at address 0x1FFD.
Ground.
+5Vdc power supply.
Contrast control.
Register select. Connected to uP line A0 = address 0.
LCD enable input.
R/W input. Connected to ground. Always in write mode.
Data line 0.
Data line 1.
Data line 2.
Data line 3.
Data line 4.
Data line 5.
Data line 6.
Data line 7.
Ground.
Data output 0.
Data output 1.
Data output 2.
Data output 3.
Data output 4.
Data output 5.
Data output 6.
Data output 7.
VDD
Received data from DTE.
Transmit data to DTE.
Data terminal ready input. Note that this line can be used to reset the entire
evaluation board.
Signal ground.
1-2
2-3
P6
Physical Flash memory area
8000H-FFFFH
0000H-7FFFH
DA9191EB.006
June 30,1997
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