Hitachi H8/3690 사용자 설명서
Rev. 1.0, 07/01, page 5 of 372
1.4
Pin Functions
Table 1-1
Pin Functions
Pin No.
Type
Symbol
FP-64E
FP-64A
FP-64A
FP-48F
I/O
Functions
Power
source
source
V
CC
12
10
Input
Power supply pin. Connect this pin to the
system power supply.
system power supply.
pins
V
SS
9
7
Input
Ground pin. Connect this pin to the system
power supply(0V).
power supply(0V).
AV
CC
3
1
Input
Analog power supply pin for the A/D converter.
When the A/D converter is not used, connect
this pin to the system power supply.
When the A/D converter is not used, connect
this pin to the system power supply.
V
CL
6
4
Input
Internal step-down power supply pin. Connect
a capacitor of around 0.1
a capacitor of around 0.1
µ
F between this pin
and the Vss pin for stabilization.
Clock
pins
pins
OSC1
11
9
Input
OSC2
10
8
Output
These pins connect with crystal or ceramic
oscillator for the system clock, or can be used
to input an external clock.
oscillator for the system clock, or can be used
to input an external clock.
See section 5, Clock Pulse Generators, for a
typical connection.
typical connection.
X1
5
3
Input
X2
4
2
Output
These pins connect with a 32.768 kHz crystal
oscillator for the subclock. See section 5, Clock
Pulse Generators, for a typical connection.
oscillator for the subclock. See section 5, Clock
Pulse Generators, for a typical connection.
System
control
control
RES
7
5
Input
Reset pin. When this driven low, the chip is
reset.
reset.
TEST
8
6
Input
Test pin. Connect this pin to Vss.
Interrupt
pins
pins
NMI
35
25
Input
Non-maskable interrupt request input pin.
IRQ0
to
IRQ3
51 to 54
37 to 40
Input
External interrupt request input pins. Can
select the rising or falling edge.
select the rising or falling edge.
WKP0
to
WKP5
13, 14,
19 to 22
19 to 22
11 to 16
Input
External interrupt request input pins. Can
select the rising or falling edge.
select the rising or falling edge.
Timer A
TMOW
23
17
Output
This is an output pin for divided clocks.
Timer V
TMOV
30
24
Output
This is an output pin for waveforms generated
by the output compare function.
by the output compare function.
TMCIV
29
23
Input
External event input pin.
TMRIV
28
22
Input
Counter reset input pin.
TRGV
54
40
Input
Counter start trigger input pin.