HD6473032F Datasheet, PDF (135/572 Pages) Hitachi Semiconductor – Hitachi Microcomputer

Table 7-1 Port Functions (1)
Port Description
Port 1 • 8-bit I/O port
• Can drive LEDs
Pins
P1₇ to P1₀/
A₇ to A₀
Port 2 • 8-bit I/O port
• Input pull-up
• Can drive LEDs
P2₇ to P2₀/
A₁₅ to A₈
Port 3 • 8-bit I/O port
Port 5 • 4-bit I/O port
• Input pull-up
• Can drive LEDs
P3₇ to P3₀/
D₇ to D₀
P5₃ to P5₀/
A₁₉ to A₁₆
Port 6 • 4-bit I/O port
P6₅/WR,
P6₄/RD,
P6₃/AS
P6₀/WAIT
Port 7
Port 8
Port 9
• 8-bit input port
• 4-bit I/O port
• P8₂ to P8₀ have
Schmitt inputs
• 3-bit I/O port
P7₇ to P7₀/
AN₇ to AN₀
P8₃/IRQ₃,
P8₂/IRQ₂,
P8₁/IRQ₁
P8₀/IRQ₀
P9₄/SCK/IRQ₄
P9₂/RxD,
P9₀/TxD
Mode 1
Address output (A₇ to
A₀) and generic input
DDR = 0:
generic input
DDR = 1:
address output
Address output (A₁₅ to
A₈) and generic input
DDR = 0:
generic input
DDR = 1:
address output
Data input/output (D₁₅
to D₈)
Address output (A₁₉ to
A₁₆) and generic input
DDR = 0:
generic input
DDR = 1:
address output
Bus control signal
output (WR, RD, AS)
Mode 2
Mode 3
Generic input/output
Generic input/output
Generic input/output
Generic input/output
Generic input/output
Bus control signal
output (WAIT) and
1-bit generic input/
output
Analog input (AN₇ to AN₀) to A/D converter, and generic input
IRQ₃ to IRQ₀ input and 4-bit generic input/output
Input and output (SCK) for serial communication interface
(SCI), IRQ₄ input, and 1-bit generic input/output
Input and output (RxD and Txd) for SCI and 2-bit generic
input/output
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