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9.1 Overview
Table 9.1 Port Functions
9.11.3 Pin Functions
Table 9.19 Port A Pin
Functions
13.3.3 Multiprocessor
Communication
Figure 13.13 Example of
SCI Receive Operation
(8-Bit Data with
Multiprocessor Bit and
One Stop Bit)
13.3.4 Synchronous
Operation
Figure 13.16 Sample
Flowchart for Serial
Transmitting
Page
Revisions (See Manual for Details)
247
Figure amended
Port
Description
Port A
8-bit I/O port
Schmitt
inputs output
287
Table amended
Pin
TIOCB
function
output
479
Figure amended
482
Figure amended
1. SCI initialization: the transmit data output function
of the TxD pin is selected automatically.
Pins
Mode 1
Mode 2
PA
/TP
/
Output (TP
) from
7
7
7
TIOCB
/A
programmable
2
20
timing pattern
controller (TPC),
input or output
(TIOCB
) for 16-bit
2
integrated timer unit
(ITU), and generic
input/output
PA
/TP
/
TPC output (TP
to
6
6
6
TIOCA
/A
/CS
TP
), ITU input and
2
21
4
4
PA
/TP
/
output (TIOCA
,
5
5
2
TIOCB
/A
/CS
TIOCB
, TIOCA
),
1
22
5
1
1
PA
/TP
/
CS
to CS
output,
4
4
4
6
TIOCA
/A
/CS
and generic input/
1
23
6
output
CS
PA
PA
TP
TIOCB
PA
1
5
5
5
5
1
input
out-
out-
out-
output
input
put
put
put
input *
TIOCB
TIOCB
1
Stop
Start
bit
bit
1
RXI interrupt handler
reads RDR data and
clears RDRF flag to 0
a. Own ID does not match data
Rev. 3.00 Mar 21, 2006 page ix of xxviii
Mode 3
Mode 4
Mode 5
Mode 6
Address output
TPC
Address
(A
)
output
output
20
(TP
),
(A
)
7
20
ITU input
or output
(TIOCB
),
2
and
generic
input/
output
TPC output (TP
to
TPC
TPC
6
TP
), ITU input and
output
output
4
output (TIOCA
,
(TP
to
(TP
to
2
6
6
TIOCB
, TIOCA
),
TP
), ITU
TP
), ITU
1
1
4
4
address output (A
input and
input and
23
to A
), CS
to CS
output
output
21
4
6
output, and generic
(TIOCA
,
(TIOCA
,
2
2
input/output
TIOCB
,
TIOCB
,
1
1
TIOCA
),
TIOCA
),
1
1
address
output
CS
to
(A
to
4
23
CS
A
), CS
6
21
4
output,
to CS
6
and
output,
generic
and
input/
generic
output
input/out
put
CS
PA
TP
A
TIOCB
5
5
5
22
5
1
out-
out-
out-
out-
output
input
put
put
put
put
input *
1
Data (da
0
D0
Mode 7
TPC
output
(TP
),
7
ITU input
or output
(TIOCB
),
2
and
generic
input/
output
TPC
output
(TP
to
6
TP
), ITU
4
input and
output
(TIOCA
,
2
TIOCB
,
1
TIOCA
),
1
and
generic
input/
output
PA
PA
5
5
out-
put
TIOCB
in
1
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