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Table 7.1
Port Functions (5)
Port
Description
Port A
General I/O port
also functioning
as a bus control
output, FRT_0
input/output,
TMX_0, TMY_0,
and TM0_0
output, timer
connection
input/output,
SCI_3 and
SCI_4
input/output,
PWM output,
and TPU
input/output.
Port B
General I/O port
also functioning
as an FRT_0
and TMR1_0
input/output,
FRT_1 and
TMR1_1 input,
and timer
connection
input/output.
Port C
General I/O port
also functioning
as an on-chip
emulator
input/output, and
IIC3_2 and
IIC3_3
input/output.
Notes: 1. When multiplex extended 16-bit bus is specified.
2. When single-chip mode and multiplex extended 8-bit bus are specified.
3. When normal extended 16-bit bus is specified.
4. When normal extended 8-bit bus, multiplex extended, and single-chip mode are
specified.
5. Not supported by the on-chip emulator.
Rev. 1.00, 09/03, page 136 of 704
Extended Mode (EXPE = 1)
Normal
Multiplex
PA7/CS3/ExTIOCA1
PA6/FTCI_0/HFBACKI
PA5/FTIB_0/VFBACKI
PA4/FTIC_0/CLAMPO
PA3/FTOB_0/CBLANK
PA2/TMO0_0/ExTIOCC0/ExTCLKA
PA1/TMOY_0/ExPW7/SCK4
PA0/TMOX_0/ExPW6/SCK3
PB7/TMI1_0/HSYNCI_0
PB6/FTIA_0/VSYNCI_0
PB5/FTID_0/CSYNCI_0
PB4/TMI1_1/HSYNCI_1
PB3/FTIA_1/VSYNCI_1
PB2/FTID_1/CSYNCI_1
PB1/TMO1_0/HSYNCO
PB0/FTOA_0/VSYNCO
5
PC7*
/ETDO
5
PC6*
/ETDI
5
PC5*
/ETCK
5
PC4*
/ETMS
PC3/SDA3
PC2/SCL3
PC1/SDA2
PC0/SCL2
Single-Chip Mode
(EXPE = 0)
PA7/ExTIOCA1
I/O Status
NMOS
push-pull
output (PC0
to PC3)
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