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Hitachi H8/300L Series Manual page 75

Single-chip microcomputer
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Block Diagram
P1
/TMOW
0
P1
/TMOFL
1
P1
/TMOFH
2
P1
/TMIG
3
P1
4
P1
/IRQ
5
1
P1
/IRQ
6
2
P1
/IRQ
/TMIF
7
3
P2
/IRQ
/ADTRG
0
4
P2
/SCK
1
1
/SI
P2
1
2
/SO
P2
1
3
P2
/SCK
4
3
P2
/RXD
5
P2
/TXD
6
P2
/IRQ
7
0
P5
/WKP
/SEG
0
0
1
P5
/WKP
/SEG
1
1
2
P5
/WKP
/SEG
2
2
3
P5
/WKP
/SEG
3
3
4
P5
/WKP
/SEG
4
4
5
P5
/WKP
/SEG
5
5
6
P5
/WKP
/SEG
6
6
7
P5
/WKP
/SEG
7
7
8
P6
/SEG
9
0
/SEG
P6
10
1
P6
/SEG
2
11
/SEG
P6
12
3
P6
/SEG
4
13
P6
/SEG
5
14
P6
/SEG
6
15
P6
/SEG
7
16
P7
/SEG
0
17
P7
/SEG
18
1
P7
/SEG
2
19
/SEG
P7
20
3
P7
/SEG
4
21
P7
/SEG
5
22
P7
/SEG
6
23
P7
/SEG
7
24
CPU
H8/300L
ROM
(PROM or mask ROM)
(40, 48, or 60 kbytes)
Timer A
Timer F
Timer G
A/D converter
Port B
75
H8/3875, H8/3876, H8/3877
RAM
(2 kbytes)
LCD
Serial
communications
interface 1
Serial
communications
interface 3
DTMF
generator
Multi-tone
generator
V
1
V
2
V
3
PA
/COM
4
3
PA
/COM
2
3
PA
/COM
2
1
PA
/COM
1
0
PE
/SEG
/CL
3
52
1
PE
/SEG
/CL
51
2
2
PE
/SEG
/DO
1
50
/SEG
/M
PE
49
0
PD
/SEG
7
48
/SEG
PD
47
6
PD
/SEG
5
46
/SEG
PD
45
4
PD
/SEG
3
44
PD
/SEG
2
43
PD
/SEG
1
42
PD
/SEG
0
41
P9
/SEG
7
40
P9
/SEG
39
6
P9
/SEG
5
38
/SEG
P9
37
4
P9
/SEG
3
36
P9
/SEG
2
35
P9
/SEG
1
34
P9
/SEG
0
33
P8
/SEG
7
32
P8
/SEG
31
6
P8
/SEG
5
30
/SEG
P8
29
4
P8
/SEG
3
28
P8
/SEG
2
27
P8
/SEG
1
26
P8
/SEG
0
25

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