User’s Manual U11969EJ3V0UM00
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CHAPTER 2 PIN FUNCTIONS
The following table shows the names and functions of the V854’s pins. These pins can be divided by function into
port pins and other pins.
2.1 Pin Function List
(1) Port pins
(1/2)
Pin Name
I/O
Function
Alternate Function
P00
I/O
TO00
P01
TO01
P02
INTP00
P03
INTP01
P04
INTP02
P05
INTP03
P06
TCLR0/INTP04
P07
TI0/INTP05
P10
I/O
INTP10
P11
INTP11
P12
INTP12
P13
INTP13
P14
TI1/INTP14
P15
TO20
P16
TI20/INTP20
P17
–
P20
Input
NMI
P21
I/O
INTP30
P22
ADTRG
P23
INTP50
P24
INTP51
P25
INTP52
P26
INTP53
P30
I/O
SO0/TXD
P31
SI0/RXD
P32
SCK0
P33
SO1/SDA
P34
SI1
P35
SCK1/SCL
P36
–
P40 to P47
I/O
AD0 to AD7
Port 2.
P20 is input-only port.
This pin operates as NMI input when valid edge is input.
Bit 0 in P2 register signifies NMI input state.
P21 to P26 are 6-bit input/output port pins.
Can be specified in input/output mode in 1-bit units.
Port 3.
7-bit I/O port.
Can be specified in input/output mode in 1-bit units.
Port 4.
8-bit I/O port.
Can be specified in input/output mode in 1-bit units.
Port 0.
8-bit I/O port.
Can be specified in input/output mode in 1-bit units.
Port 1.
8-bit I/O port.
Can be specified in input/output mode in 1-bit units.
Содержание V854 UPD703006
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