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Port
Description
Port B • 8-bit I/O
port
• Built-in
MOS input
pull-up
• Open-drain
output
capability
Port C • 8-bit I/O
port
• Built-in
MOS input
pull-up
• Open-drain
output
capability
Port D • 8-bit I/O
port
• Built-in
MOS input
pull-up
Port E • 8-bit I/O
port
• Built-in
MOS input
pull-up
330
Pins
PB7/A15/TIOCB5
PB6/A14/TIOCA5
PB5/A13/TIOCB4
PB4/A12/TIOCA4
PB3/A11/TIOCD3
PB2/A10/TIOCC3
PB1/A9/TIOCB3
PB0/A8/TIOCA3
PC7/A7/PWM1
PC6/A6/PWM0
PC5/A5
PC4/A4
PC3/A3
PC2/A2
PC1/A1
PC0 /A0
PD7 /D15
PD6/D14
PD5/D13
PD4/D12
PD3/D11
PD2/D10
PD1/D9
PD0 /D8
PE7/D7
PE6/D6
PE5/D5
PE4/D4
PE3/D3
PE2/D2
PE1/D1
PE0 /D0
Mode 4
Mode 5
8-bit I/O port also functioning as TPU I/O pins
(TIOCB5, TIOCA5, TIOCB4, TIOCA4, TIOCD3,
TIOCC3, TIOCB3, TIIOCA3) and address
outputs (A15 to A8)
8-bit I/O port also functioning as 14-bit PWM
(channel 1 and 0) output pins (PWM1, PWM0)
and address outputs (A7 to A0)
Data bus input/output
In 8-bit-bus mode: I/O port
In 16-bit-bus mode: data bus input/output
Mode 6
Mode 7
8-bit I/O port
also
functioning as
TPU I/O pins
(TIOCB5,
TIOCA5,
TIOCB4,
TIOCA4,
TIOCD3,
TIOCC3,
TIOCB3,
TIIOCA3)
8-bit I/O port
also function-
ing as 14-bit
PWM (channel
1 and 0) output
pins (PWM1,
PWM0)
I/O port
I/O port
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