5
1.2
Internal Block Diagram
Figure 1-1 shows a block diagram of the H8/3937 Series and H8/3937R Series.
P1
0
/TMOW
P1
1
/TMOFL
P1
2
/TMOFH
P1
3
/TMIG
P1
4
/
IRQ
4
/
ADTRG
P1
5
/
IRQ
1
/TMIC
P1
6
/
IRQ
2
P1
7
/
IRQ
3
/TMIF
P3
0
P3
1
/UD
P3
2
/
RESO
P3
3
/SCK
31
P3
4
/RXD
31
P3
5
/TXD
31
P3
6
P3
7
P5
0
/
WKP
0
P5
1
/
WKP
1
P5
2
/
WKP
2
P5
3
/
WKP
3
P5
4
/
WKP
4
P5
5
/
WKP
5
P5
6
/
WKP
6
P5
7
/
WKP
7
OSC
1
OSC
2
P4
0
/SCK
32
P4
1
/RXD
32
P4
2
/TXD
32
CLKOUT
LOBAT
SYMCLK
S0/IFIN
S1
S2
S3
S4
S5
S6
S7
EXTS0
EXTS1
TESTD
P4
3
/
IRQ
0
P2
0
/SCK
1
P2
1
/SI
1
P2
2
/SO
1
P2
3
P2
4
READY
SCK
MISO
MOSI
SS
RESET
System clock
OSC
DX
1
DX
2
Sub clock
OSC
V
SS
V
SS
V
CC
V
CC
RES
TEST
TEST9H
H8/300L
CPU
ROM
(60 k, 48 k, 40 k)
RAM
(2 k)
Timer-A
Timer-C
Timer-F
Timer-G
Serial
communication
interface 32
Serial
communication
interface 31
Serial
communication
interface 1
WDT
A/D (10-bit)
Port 4
Internal
I/O port
PA
3
PA
2
PA
1
PA
0
TEST20
TEST21
TEST22
TEST23
TEST24
TEST43
P8
7
P8
6
P8
5
P8
4
P8
3
P8
2
P8
1
P8
0
P7
7
P7
6
P7
5
P7
4
P7
3
P7
2
P7
1
P7
0
P6
7
P6
6
P6
5
P6
4
P6
3
P6
2
P6
1
P6
0
Port 2
AV
CC
AV
SS
PB
0
/AN
0
PB
1
/AN
1
PB
2
/AN
2
PB
3
/AN
3
PB
4
/AN
4
PB
5
/AN
5
PB
6
/AN
6
PB
7
/AN
7
P9
3
P9
2
P9
1
P9
0
Port A
Port 9
Port 8
Port 7
Port 6
Port B
Port 3
Port 5
Port 1
Note:
Serial communication interface 1, P2
0
to P2
4
, and P4
3
, are internal functions that perform interfacing to
the FLEX™ decoder incorporated in the chip.
Internal functions
FLEX™ decoder
Figure 1-1 Block Diagram
Содержание H8/3935
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Страница 53: ...41 Notation op Operation field 15 0 8 7 op op Figure 2 10 Block Data Transfer Instruction Code ...
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