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參數(shù)資料
| 型號： | μPD78P048A |
| 廠商： | NEC Corp. |
| 英文描述： | 8 Bit Single Chip Microcontrollers(8位單片微控制器) |
| 中文描述： | 8位單片機微控制器（8位單片微控制器） |
| 文件頁數(shù)： | 12/72頁 |
| 文件大?。?/td> | 387K |
| 代理商： | ΜPD78P048A |
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m
PD78P048A
12
2. PIN FUNCTION
2.1 Pins in Normal Operating Mode
(1) Port pins (1/2)
Pin Name
Input/Output
Function
On Reset
Dual-Function Pin
P00
Input
Port 0
Input only Input
Input
INTP0/TI0
P01
Input/output
5-bit input/
INTP1
P02
output port
Input
INTP2
P03
INTP3/CI0
P04
Note 1
Input
Input only
Input
XT1
P10 to P17
Input/output
Port 1
8-bit input/output port
Input/output is specifiable bit-wise.
When used as the input port, it is possible to
use an on-chip pull-up resistor in software.
Note 2
Input
ANI0 to ANI7
P20
Input/output
Input
SI1
P21
SO1
P22
SCK1
P23
STB
P24
BUSY
P25
SI0/SB0
P26
SO0/SB1
P27
SCK0
P30
Input/output
Input
TO0
P31
TO1
P32
TO2
P33
TI1
P34
TI2
P35
PCL
P36
BUZ
P37
–
Notes 1.
When the P04/XT1 pins are used as input ports, processor clock control register (PCC) bit 6 (FRC) should
be set to 1 (the subsystem clock oscillator incorporated feedback resistor should not be used).
2.
When the P10/ANI0 to P17/ANI7 pins are used as A/D converter analog input, port 1 should be set to the
input mode. The on-chip pull-up resistor is not automatically used.
Input/Output is specifiable bit-wise.
When used as the input port, it is
possible to use an on-chip pull-up
resistor in software.
Port 2
8-bit input/output port
Input/output is specifiable bit-wise.
When used as the input port, it is possible to
use an on-chip pull-up resistor in software.
Port 3
8-bit input/output port
Input/output is specifiable bit-wise.
Direct LED drive capability.
When used as the input port, it is possible to
use an on-chip pull-up resistor in software.
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