參數(shù)資料
型號： μPD78P054
廠商： NEC Corp.
元件分類： 8位微控制器
英文描述： 8 Bit Single Chip Microcontrollers
中文描述： 8位單片機微控制器
文件頁數(shù)： 12/86頁
文件大?。?/td> 502K
代理商： ΜPD78P054
12
μ
PD78P054, 78P058
2. PIN FUNCTIONS
2.1
Pins in Normal Operating Mode
(1) Port pins (1/2)
Pin Name
Input/Output
Function
After Reset
Alternate
Function
P00
Input
Port 0
Input only
Input
INTP0/TI00
P01
Input/output
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 by software.
Input
INTP1/TI01
P02
INTP2
P03
INTP3
P04
INTP4
P05
INTP5
P06
INTP6
P07
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 by software.
Note 2
Input
ANI0 to ANI7
P20
Input/output
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 by software.
Input
SI1
P21
SO1
P22
SCK1
P23
STB
P24
BUSY
P25
SI0/SB0
P26
SO0/SB1
P27
SCK0
P30
Input/output
Port 3
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 by software.
Input
TO0
P31
TO1
P32
TO2
P33
TI1
P34
TI2
P35
PCL
P36
BUZ
P37
—
Notes 1.
When P07/XT1 pins are used as the input ports, set the processor clock control register (PCC) bit 6
(FRC) to 1 (be sure not to use the feedback resistor of the subsystem clock oscillation circuit).
2.
When P10/ANI0 to P17/ANI7 pins are used as the analog inputs for A/D converter, set port 1 to input
mode. The pull-up resistors are automatically disabled.
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