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參數(shù)資料
| 型號： | MSM64155A-XXXGS-BK |
| 廠商： | OKI ELECTRIC INDUSTRY CO LTD |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 4-BIT, MROM, 0.075 MHz, MICROCONTROLLER, PQFP100 |
| 封裝： | 14 X 20 MM, PLASTIC, QFP-100 |
| 文件頁數(shù)： | 24/26頁 |
| 文件大?。?/td> | 150K |
| 代理商： | MSM64155A-XXXGS-BK |
MSM64155A/64155AL
Semiconductor
7/26
Basic Functions (continued)
I
Ports
4-bit input port (port 2) :
Select between pull-down resistor input and high impedance
input for each bit with the port 2 control register (P2CON).
When configured for secondary functions, an external
interrupt and capture circuit trigger input are allocated.
If P2.0 to P2.3 are set to "H" level, the device enters system
reset mode.
6
8
7
6
10
9
5
4
8
7
I
2-bit input port (port 3) :
Select between pull-down resistor input and high impedance
input with the port 3 control register (P3CON).
When configured for a secondary function, an external
interrupt is allocated to P3.0 and an event counter is
allocated to P3.1.
53
O
4-bit output port (port 4) :
4-bit CMOS output port.
12
14
13
12
11
10
11
9
I/O
4-bit input-output port (port 6) :
Select between input and output, between pull-down resistor
input and high impedance input, and between open-drain
output and CMOS output with the port 6 control register
(P6CON). When configured for a secondary function, an
external interrupt is allocated.
16
18
17
16
15
14
15
13
I/O
4-bit input-output port (port 7) :
Select between input and output, between pull-down
resistor input and high impedance input, and between
open-drain output and CMOS output with the port 7 control
register (P7CON). When configured for a secondary
function, an external interrupt is allocated.
20
22
21
19
17
Melody
Drivers
O
Output pin of melody driver 0.
23
25
O
Inverted output pin of MD0 output.
22
24
O
Output pin of melody driver 1.
24
26
O
Inverted output pin of MD1 output.
25
27
O
LCD common signal output pins.
92
95
94
93
91
90
92
89
LCD
Drivers
O
Pad
Pin
Description
Type
Function
P2.0
P2.1
P2.2
P3.0
P3.1
P2.3
P4.0
P4.1
P4.2
P4.3
P6.0
P6.1
P6.2
P6.3
P7.0
P7.1
P7.3
MD0
MD1
COM1
COM2
COM3
COM4
Symbol
20
18
P7.2
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