
ML66517 Family User’s Manual
Chapter 5
Port Functions
5 – 2
Table 5-1
Port Function Summary of ML66517/ML66Q517
Port name
Pin
Type
Number
I/O
Secondary function
Port 0
P0_0 to P0_7
A
8
I/O
External memory access address/data bus AD0 to
AD7 (I/O)
Port 1
P1_0 to P1_7
B
8
I/O
External memory access A8 to A15 (output)
Port 2
P2_0
B
1
I/O
External memory access A16 (output)
P3_0
B
1
I/O
External memory access ALE (output)
P3_1
B
1
I/O
External program memory access
PSEN (output)
P3_2
C
1
I/O
External data memory access
RD (output)
Port 3
P3_3
C
1
I/O
External data memory access
WR (output)
P5_6
D
1
I/O
Timer 0 timer output TM0OUT (output)
Port 5
P5_7
D
1
I/O
Timer 0 external event input TM0EVT (input)
P6_0 to P6_3
D
4
I/O
External interrupt EXINT0 to EXINT3 (input)
P6_4
D
1
I/O
Timer 1 external event input TM1EVT (input)
P6_5
D
1
I/O
Timer 1 timer output TM1OUT (output)
P6_6
D
1
I/O
Timer 2 external event input TM2EVT (input)
Port 6
P6_7
D
1
I/O
Timer 2 timer output TM2OUT (output)
Port 7
P7_6, P7_7
D
2
I/O
PWM output PWM0OUT, PWM1OUT (output)
P8_0
D
1
I/O
SIO1 receive data input RXD1 (input)
P8_1
D
1
I/O
SIO1 transmit data output TXD1 (output)
P8_2
D
1
I/O
SIO1 receive clock RXC1 (I/O)
P8_3
D
1
I/O
SIO1 transmit clock TXC1 (I/O)
Port 8
P8_6, P8_7
D
2
I/O
PWM output PWM2OUT, PWM3OUT (output)
Port 10
P10_7
D
1
I/O
Timer 5 external event input TM5EVT (input)
Port 11
P11_2
D
1
I/O
Main clock pulse output CLKOUT (output)
Port 12
P12_0 to P12_7
E
8
I
A/D converter analog input AI0 to AI7 (input)
P15_0
D
1
I/O
SIO6 receive data input RXD6 (input)
P15_1
D
1
I/O
SIO6 transmit data output TXD6 (output)
P15_2
D
1
I/O
SIO6 receive clock RXC6 (I/O)
Port 15
P15_3
D
1
I/O
SIO6 transmit clock TXC6 (I/O)
P16_0
D
1
I/O
3-phase PWM output PWMU (output)
P16_1
D
1
I/O
3-phase PWM output PWMUB (output)
P16_2
D
1
I/O
3-phase PWM output PWMV (output)
P16_3
D
1
I/O
3-phase PWM output PWMVB (output)
P16_4
D
1
I/O
3-phase PWM output PWMW (output)
P16_5
D
1
I/O
3-phase PWM output PWMWB (output)
Port 16
P16_6
D
1
I/O
Abnormality detect input
INACT (input)
P17_0, P17_1
D
2
I/O
Capture input CAPF0, CAPF1 (input)
Port 17
P17_2, P17_3
D
2
I/O
Capture input/compare output CPCMF0, CPCMF1
(I/O)