Table 9-21 Port B Pin Functions (cont)
Pin
Pin Functions and Selection Method
Bit CS7E in CSCR, DMAC channel 0 settings (bits DTS2/1/0A and DTS2/1/0B in
DTCR0A and DTCR0B), bit NDER14 in NDERB, and bit PB
6
DDR in PBDDR select the
pin function as follows
PB
6
DDR
0
1
1
—
CS7E
0
0
0
1
NDER14
—
0
1
—
Pin function
PB
6
input
PB
6
output
TP
14
output
—
DREQ
0
input
*
CS
7
output
Note:
*
DREQ
0
input under DMAC channel 0 settings (1) in the table below.
DMAC
channel 0
settings
(2)
(1)
(2)
(1)
(2)
(1)
DTS2A, DTS1A
Not both 1
Both 1
DTS0A
—
0
0
1
1
1
DTS2B
0
1
1
0
1
0
1
1
DTS1B
—
0
1
—
—
—
0
1
ITU channel 4 settings (bit CMD1 in TFCR and bit EXB4 in TOER), bit NDER13 in
NDERB, and bit PB
5
DDR in PBDDR select the pin function as follows
EXB4,
CMD1
Not both 1
Both 1
PB
5
DDR
0
1
1
—
NDER13
—
0
1
—
Pin function
PB
5
input
PB
5
output TP
13
output
TOCXB
4
output
ITU channel 4 settings (bit CMD1 in TFCR and bit EXA4 in TOER), bit NDER12 in
NDERB, and bit PB
4
DDR in PBDDR select the pin function as follows
EXA4,
CMD1
Not both 1
Both 1
PB
4
DDR
0
1
1
—
NDER12
—
0
1
—
Pin function
PB
4
input
PB
4
output TP
12
output
TOCXA
4
output
PB
6
/
TP
14
/
DREQ
0
/
CS
7
PB
5
/
TP
13
/
TOCXB
4
PB
4
/
TP
12
/
TOCXA
4
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