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CHAPTER 4 PIN FUNCTION (
µ
PD78014Y Subseries)
79
CHAPTER 4 PIN FUNCTION (
µ
PD78014Y Subseries)
4.1 Pin Function List
4.1.1 Normal operating mode pins
(1) Port pins (1/2)
Pin Name
Input/
Function
After
Alternate
Output
Reset
Function
P00
Input
Port 0
Input only
Input
INTP0/TI0
P01
Input/
5-bit input/output port
Input/output specifiable bit-wise.
Input
INTP1
P02
Output
If used as an input port, an on-chip pull-up
INTP2
P03
resistor can be connected by software.
INTP3
P04
Note 1
Input
Input only
Input
XT1
P10 to P17
Input/
Port 1
Input
ANI0 to ANI7
Output
8-bit input/output port.
Input/output specifiable bit-wise.
If used as an input port, an on-chip pull-up resistor can be connected by
software
Note 2
.
P20
Input/
Port 2
Input
SI1
P21
Output
8-bit input/output port.
SO1
P22
Input/output specifiable bit-wise.
SCK1
P23
If used as an input port, an on-chip pull-up resistor can be connected by
STB
P24
software.
BUSY
P25
SI0/SB0/SDA0
P26
SO0/SB1/SDA1
P27
SCK0/SC1
P30
Input/
Port 3
Input
TO0
P31
Output
8-bit input/output port.
TO1
P32
Input/output specifiable bit-wise.
TO2
P33
If used as an input port, an on-chip pull-up resistor can be connected by
TI1
P34
software.
TI2
P35
PCL
P36
BUZ
P37
—
Notes
1. When the P04/XT1 pin is used as an input port, set bit 6 (FRC) of the processor clock control register
(PCC) to 1 (do not use the on-chip feedback resistor of the subsystem clock oscillator).
2. When pins P10/ANI0 to P17/ANI7 are used as analog input of the A/D converter, the on-chip pull-up
resistor is automatically disabled.
Содержание 78014Y Series
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