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I/O PORTS
Table 6-4. Bidirectional Port Pins
Port Pin
Special-function
Signal(s)
Special-function
Signal Type
Associated
Peripheral
P1.0 (MH) TXD0 O SIO
P1.1 (MH) RXD0 I/O SIO
P1.2 (MH) TXD1 O SIO
P1.3 (MH) RXD1 I/O SIO
P2.0 EPA0 I/O EPA
P2.1
EPA1 (MC, MD) I/O EPA
SCLK0# (MH)
BCLK0 (MH)
I/O
I
SIO
SIO
P2.2
EPA2 (MC, MD) I/O EPA
EPA1 (MH) I/O EPA
P2.3
EPA3 (MC, MD) I/O EPA
COMP3 (MH) O EPA
P2.4 COMP0 O EPA
P2.5 COMP1 O EPA
P2.6 COMP2 O EPA
P2.7
COMP3 (MC, MD) O EPA
SCLK1# (MH)
BCLK1 (MH)
I/O
I
SIO
SIO
P5.0 ALE/ADV# O Bus controller
P5.1 INST O Bus controller
P5.2 WR#/WRL# O Bus controller
P5.3 RD# O Bus controller
P5.4 ONCE I Bus controller
P5.5 BHE#/WRH# O Bus controller
P5.6 READY I Bus controller
P5.7 BUSWIDTH I Bus controller
P7.0 (MD) EPA4 I/O EPA
P7.1 (MD) EPA5 I/O EPA
P7.2 (MD) COMP4 O EPA
P7.3 (MD) COMP5 O EPA
P7.4 (MD) — I/O —
P7.5 (MD) — I/O —
P7.6 (MD) — I/O —
P7.7 (MD) FREQOUT O Frequency generator