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Number
Pin Name
of Pins
P70
SCK
OPTRX0
P71
SO
SDA
OPTTX0
P72
SI
SCL
P80 to P87
AN0 to AN7
ADTRG
PB0
TA0IN
PB1
TA1OUT
PB2
TA3OUT
PB3
INT0
PB4 to PB6
INT1 to INT3
PC0
TXD0
PC1
RXD0
Table 2.3.2 Pin Names and Functions (2/3)
I/O
1
I/O
Port 70: I/O port
I/O
Serial bus interface clock I/O data at SIO mode
Input
Serial 0 receive data
1
I/O
Port 71: I/O port
Output
Serial bus interface send data at SIO mode
I/O
Serial bus interface send/receive data at I
Open-drain output mode by programmable (with pull up)
Output
Serial 0 send data
1
I/O
Port 72: I/O port
Input
Serial bus interface recive data at SIO mode
I/O
Serial bus interface clock I/O data at I
Open-drain output mode by programmable (with pull up)
8
Input
Port 80 to 87 port: Pin used to input ports
Input
Analog input 0 to 7: Pin used to input to AD conveter
Input
AD trigger: Signal used to request AD start (with used to P83)
1
I/O
Port B0: I/O port
Input
8-bit timer 0 input: Timer 0 input
1
I/O
Port B1: I/O port
Output
8-bit timer 1 output: Timer 0 output or timer 1 output
1
I/O
Port B2: I/O port
Output
8-bit timer 3 output: Timer 2 output or timer 3 output
1
I/O
Port B0: I/O port
Input
Interrupt request pin0: Interrupt request pin with programmable rising
/falling edge
3
I/O
Port B4 to B6: I/O port
Input
Interrupt request pin1 to 3: Interrupt request pin with programmable rising
/falling edge
1
I/O
Port C0: I/O port
Output
Serial 0 send data: Open-drain output pin by programmable
1
I/O
Port C1: I/O port
Input
Serial 0 receive data
91C824-7
TMP91C824
Functions
2
C bus mode
2
C bus mode
2008-02-20
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