Hitachi H8/3048 Hardware Manual page 302

Table 9-21 Port B Pin Functions (cont)
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Pin Pin Functions and Selection Method
PB /
Bit CS7E in CSCR, DMAC channel 0 settings (bits DTS2/1/0A and DTS2/1/0B in
6
TP /
DTCR0A and DTCR0B), bit NDER14 in NDERB, and bit PB
14
DREQ / pin function as follows
0
CS
7
PB DDR
6
CS7E
NDER14
Pin function
Note: * DREQ
DMAC
channel 0
settings
DTS2A, DTS1A
DTS0A
DTS2B
DTS1B
ITU channel 4 settings (bit CMD1 in TFCR and bit EXB4 in TOER), bit NDER13 in
PB /
5
NDERB, and bit PB
TP /
13
TOCXB
4
EXB4,
CMD1
PB DDR
5
NDER13
Pin function
ITU channel 4 settings (bit CMD1 in TFCR and bit EXA4 in TOER), bit NDER12 in
PB /
4
NDERB, and bit PB
TP /
12
TOCXA
4
EXA4,
CMD1
PB DDR
4
NDER12
Pin function
0
0
—
PB input PB
6
DREQ
input under DMAC channel 0 settings (1) in the table below.
0
(2) (1)
Not both 1
—
0 1 1
— 0 1
DDR in PBDDR select the pin function as follows
5
Not both 1
0 1
— 0
PB input PB output TP
5 5
DDR in PBDDR select the pin function as follows
4
Not both 1
0 1
— 0
PB input PB output TP
4 4
289
DDR in PBDDR select the
6
1 1
0 0
0 1
output TP output
6 14
input*
0
(2) (1)
Both 1
0 0
0 1
— —
1
1
output TOCXB
13
1
1
output TOCXA
12
—
1
—
—
CS output
7
(2) (1)
1 1 1
0 1 1
— 0 1
Both 1
—
—
output
4
Both 1
—
—
output
4