參數(shù)資料
型號: μPD78F9026
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(jī)微控制器
文件頁數(shù): 10/48頁
文件大小: 248K
代理商: ΜPD78F9026
Preliminary Data Sheet
10
PD78F9026
4.2
Non-port pins
Pin Name
Input/Output
Function
After Reset
Alternate Function
INTP0
Input
Input
P30
INTP1
P31
INTP2
P32/CPT2
SI0
Input
Serial interface serial data input.
Input
P22/RxD
SO0
Output
Serial interface serial data output.
Input
P21/TxD
SCK0
Input/output
Serial interface serial clock input/output.
Input
P20/ASCK
RxD
Input
Asynchronous serial interface serial data input.
Input
P22/SI0
TxD
Output
Asynchronous serial interface serial data output.
Input
P21/SO0
ASCK
Input
Asynchronous serial interface serial clock input.
Input
P20/
SCK0
TI0
Input
External count clock input to 8-bit timer (TM0).
Input
P50/TO0
TO0
Output
8-bit timer (TM0) output.
Input
P50/TI0
TO2
Output
16-bit timer (TM2) output.
Input
P51
CPT2
Input
Capture edge input pin.
Input
P32/INTP2
KR0-KR7
Input
Key return signal detection pin.
Input
P40-P47
RESET
Input
System reset input.
Input
-
X1
Input
Main system clock oscillation crystal connection.
-
-
X2
-
-
-
V
DD
-
Positive power supply.
-
-
V
PP
Note
-
Flash memory programming mode setting. Applies high voltage at
program writing/verifying. Connected to V
SS
directly at normal
operation mode.
-
-
NC
-
Not connected internally. Connected to V
SS
(can be left open)
-
-
V
SS
-
Ground potential.
-
-
Note
When writing is performed on the target board, V
SS
should be selectable with a switch even when high
voltage (approx. 10 V) is applied to the V
PP
pin.
External interrupt input by which the active edge (rising edge, falling
edge, or both rising and falling edges) can be specified.
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