79
1
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
2 3 4 5 6 7 8
9 10 11 12
13 14 15 16 17 18 19 20
56 55 54 53 52 51 50 49 48 47 46 45 44
42
43
41
80
79
78
77
76
75
74
73
72
71
70
69
68
67
66
65
64
63
62
P7
2
/AN
2
P7
3
/AN
3
P7
4
/AN
4
P7
5
/AN
5
P7
6
/AN
6
P7
7
/AN
7
P8
0
/IRQ
0
VREF
AVSS
61
PORT 6
PORT A
PORT 7
PORT 2
PORT 1
PORT 8
PORT 3
PORT 5
H8/300H CPU
CLOCK
OSCILLATOR
INTERNUPTION
CONTROLLER
ROM
(MASK ROM)
RAM
WATCH DOG TIMER
(WDT)
16 BIT
INTEGRATED
TIMER UNIT
(ITU)
A/D CONVERTER
BUS
CONTROLLER
DATA BUS (HIGH)
DATA BUS (LOW)
SERIAL COMMUNICATION
INTERFACE
(SCI) x 1CH
PORT B
PORT 9
59 58 57
60
39
40
P8
1
/IRQ
1
P8
2
/IRQ
2
P8
3
/IRQ
3
PA
0
/TP
0
/TCLKA
PA
1
/TP
1
/TCLKB
PA
4
/TP
4
/TIOCA
1
PA
5
/TP
5
/TIOCB
1
PA
6
/TP
6
/TIOCA
2
PA
7
/TP
7
/TIOCB
2
TIOCA
3
/TP
8
/PB
0
TIOCB
3
/TP
9
/PB
1
TIOCA
4
/TP
10
/PB
2
TIOCB
4
/TP
11
/PB
3
TOCXA
4
/TP
12
/PB
4
TOCXB
4
/TP
13
/PB
5
TP
14
/PB
6
TXD/P9
0
D
0
/P3
0
D
1
/P3
1
D
2
/P3
2
D
3
/P3
3
D
4
/P3
4
D
5
/P3
5
D
6
/P3
6
D
7
/P3
7
A
17
/P5
2
A
16
/P5
1
A
15
/P2
7
A
14
/P2
6
A
13
/P2
5
A
12
/P2
4
A
11
/P2
3
A
9
/P2
1
A
10
/P2
2
A
8
/P2
0
A
7
/P1
7
A
6
/P1
6
A
5
/P1
5
A
4
/P1
4
A
3
/P1
3
A
2
/P1
2
A
1
/P1
1
A
0
/P1
0
VCC
VSS
P7
1
/AN
1
P7
0
/AN
0
P6
5
/WR
P6
4
/RD
P6
3
/AS
VCC
EXTAL
VSS
NMI
RES
STBY
Ø
XTAL
MD
1
MD
0
P6
0
/WAIT
P5
3
/A
19
P5
2
/A
18
AVSS
RESO
RXD/P9
2
VSS
ADTRG/TP
15
/PB
7
IRQ
4
/SCK/P9
4
PA
2
/TP
2
/TIOCA
0
/TCLKC
PA
3
/TP
3
/TIOCB
0
/TCLKD
ADDRESS BUS
PROGRAMMABLE
TIMING PATTERN
CONTROLLER
(TPC)
IC303 HD6433032SSNM11F
IC304 SST29EE512-90-4C-NHTR
DATA LATCH
INPUT/OUTPUT
BUFFERS
Y-GATING
CELL MATRIX
Y DECODER
X DECODER
OE,CE,AND WE
LOGIC
22
21 20 19 18
15 14 13
17 16
23
24
25
26
27
28
29
30
31
32
12
11
10
9
8
7
6
5
4
3
2
1
A9
A8
A13
A14
NC
WE
VCC
A11
OE
A10
CE
I/O 7
I/O 6
I/O 5
I/O 4
I/O 3
GND
I/O 2
I/O 1
I/O 0
NC
NC
A15
A12
A7
A6
A5
A4
A3
A2
A1
A0
