HD64F3437TF16 Datasheet, PDF (131/752 Pages) Hitachi Semiconductor – 12 V must not be applied to the S-mask model (single-power-supply specification), as this may permanently damage the device.

Table 7.1 Port Functions
Port
Port 1
Port 2
Port 3
Port 4
Port 5
Port 6
Port 7
Expanded
Modes
Single-Chip
Mode
Description
Pins
Mode 1
Mode 2
Mode 3
• 8-bit I/O port
• Can drive LEDs
• Built-in input
pull-ups
P1₇ to P1₀/A₇ to A₀
Lower address
output (A₇ to A₀)
Lower address
output (A₇ to A₀)
or general input
General
input/output
• 8-bit I/O port
• Can drive LEDs
• Built-in input
pull-ups
P2₇ to P2₀/A₁₅ to A₈
Upper address
output (A₁₅ to A₈)
Upper address
output (A₁₅ to A₈)
or general input
General
input/output
• 8-bit I/O port
• Built-in input
pull-ups
• HIF data bus
P3₇ to P3₀/
D₇ to D₀/
HDB₇ to HDB₀
Data bus
(D₇ to D₀)
Data bus
(D₇ to D₀)
HIF data bus
(HDB₇ to
HDB₀) or
general input/
output
• 8-bit I/O port
• 3-bit I/O port
• 8-bit I/O port
• Built-in input
pull-ups
• Key-sense
interrupt inputs
• 8-bit I/O port
P4₇/PW₁
P4₆/PW₀
PWM timer 0/1 output (PW₀, PW₁), or general
input/output
P4₅/TMRI₁/HIRQ₁₂
P4₄/TMO₁/HIRQ₁
P4₃/TMCI₁/HIRQ₁₁
8-bit timer 1 input/output (TMCI₁, TMO₁, TMRI₁), host
processor interrupt request output from HIF (HIRQ₁₁,
HIRQ₁, HIRQ₁₂), or general input/output
P4₂/TMRI₀
P4₁/TMO₀
8-bit timer 0 input/output (TMCI₀, TMO₀, TMRI₀) or
general input/output
P4₀/TMCI₀
P5₂/SCK₀
P5₁/RxD₀
Serial communication interface 0 input/output (TxD₀,
RxD₀, SCK₀) or general input/output
P5₀/TxD₀
P6₇/KEYIN₇/IRQ₇
16-bit free-running timer input/output (FTCI, FTOA,
P6₆/KEYIN₆/FTOB/IRQ₆
P6₅/KEYIN₅/FTID
FTIA, FTIB, FTIC, FTID, FTOB), key-sense interrupt
input (KEYIN₇ to KEYIN₀), external interrupt input (IRQ₇,
IRQ₆), or general input/output
P6₄/KEYIN₄/FTIC
P6₃/KEYIN₃/FTIB
P6₂/KEYIN₂/FTIA
P6₁/KEYIN₁/FTOA
P6₀/KEYIN₀/FTCI
P7₇/AN₇/DA₁
P7₆/AN₆/DA₀
Analog input to A/D converter (AN₇, AN₆), analog output
from D/A converter (DA₁, DA₀), or general input
P7₅ to P7₀/
AN₅ to AN₀
Analog input to A/D converter (AN₅ to AN₀) or general
input
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