HD6433935 Hitachi, HD6433935 Datasheet - Page 17

• Manufacturer Part Number: HD6433935
• Description: 8-Bit MICROCONTROLLER
• Manufacturer: Hitachi

1.2
Figure 1-1 shows a block diagram of the H8/3937 Series and H8/3937R Series.
Note:
Internal Block Diagram
P1
P1
4
P1
Serial communication interface 1, P2
the FLEX™ decoder incorporated in the chip.
/IRQ
5
7
P1
P1
/IRQ
P1
/IRQ
P3
P3
P3
P3
P5
P5
P5
P5
P5
P5
P5
P5
P1
2
4
1
P1
0
PB
PB
PB
PB
PB
PB
PB
PB
/TMOFH
/ADTRG
/TMOFL
3
4
2
5
/TMOW
0
1
2
3
4
5
6
7
P3
3
/RXD
1
/RESO
/SCK
/TXD
3
6
/WKP
/WKP
/WKP
/WKP
/WKP
/WKP
/WKP
/WKP
/TMIG
/TMIC
/TMIF
0
1
2
3
4
5
6
7
/IRQ
1
/AN
/AN
/AN
/AN
/AN
/AN
/AN
/AN
P3
/UD
P3
P3
31
31
31
0
1
2
3
4
5
6
7
2
0
6
7
0
1
2
3
4
5
6
7
(60 k, 48 k, 40 k)
A/D (10-bit)
Timer-G
Timer-A
Timer-C
Timer-F
ROM
WDT
Figure 1-1 Block Diagram
Port 4
0
to P2
Internal functions
4
, and P4
FLEX™ decoder
communication
communication
communication
interface 31
interface 32
H8/300L
interface 1
CPU
Serial
Serial
Serial
RAM
(2 k)
Port 2
3
, are internal functions that perform interfacing to
Internal
I/O port
TEST20
TEST21
TEST22
TEST23
TEST24
TEST43
PA
PA
PA
PA
P9
P9
P9
P9
P8
P8
P8
P8
P8
P8
P8
P8
P7
P7
P7
P7
P7
P7
P7
P7
P6
P6
P6
P6
P6
P6
P6
P6
3
2
1
0
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
3
2
1
0
5