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Microprocessor Pin Function Table - Hitachi VK-S454 Service Manual

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MICROPROCESSOR PIN FUNCTION TABLES
Digital Microprocessor (IC1201: D-µP)
Pin
I/O
Active
Abbreviation
Function
No.
Level
1
O
(Pulse)
LD-DSP
Activates data communication with IC1121 (DSP).
2
O
(Pulse)
CS-DAC
Not used. Open.
3
O
(Pulse)
CS-VAP
4
O
Hi
GYRO-RST
5
-----
-----
CEON
6
-----
-----
CHARGE
7
O
(Pulse)
RDOEB
Activates focus drive data communications with IC1302 (FOCUS MOTOR DRIVE).
8
O
(Pulse)
ZDOEB
Activates zoom drive data communications with IC1301 (ZOOM MOTOR DRIVE).
9
O
(Pulse)
RDCK
Outputs focus motor drive signal to IC1302 (FOCUS MOTOR DRIVE).
10
O
(Pulse)
ZDCK
Outputs zoom motor drive signal to IC1301 (ZOOM MOTOR DRIVE).
11
O
(Pulse)
IRDCK
Outputs IR motor drive signal to IC1380 (IR FILTER DRIVE).
12
-----
-----
VCC (3V)
3V power input.
13
I
Hi/Lo
LINE-SW
External sync detection input. When "Hi" is input, the unit will be driven in the
external sync mode; when "Lo" is input, it will be driven in the internal sync mode.
14
-----
-----
GND
Ground.
15
O
Hi/Lo
IRDCW
Issues a command which determines with IC1380 (IR FILTER DRIVE).
16
O
(Pulse)
IROREB
Activates IR motor drive data communications with IC1380 (IR FILTER DRIVE).
17
O
Hi
IR-RESET
Resets IC1380 (IR FILTER DRIVE).
18
I
(Pulse)
IR-SENS
IR motor position detection input.
19
O
-----
IR-LED
Not used. Open.
20
-----
-----
----------
21
-----
-----
----------
22
I
0V-3V
H-VAP
23
-----
-----
XTAL-CTL
24
I
0V-3V
V-VAP
25
-----
-----
CHECK8
26
O
Hi
ZD-RESET
Resets IC1301 (ZOOM MOTOR DRIVE).
27
O
Hi
RD-RESET
Resets IC1302 (FOCUS MOTOR DRIVE).
28
O
(Pulse)
IRIS-PWM
Iris motor drive output .
29
-----
-----
LD-JIG
Not used. Open.
30
O
(Pulse)
ZOOM-LED
Output pulses to drive the ZOOM LED in the lens block via Q1201 (LED DRIVE).
31
-----
-----
TXD2
Not used.
32
-----
-----
RXD2
33
O
(Pulse)
FCUS-LED
Output pulses to drive the FOCUS LED in the lens block via Q1201 (LED DRIVE).
34
O
Hi/Lo
ZD CW
Issues a command which determines with IC1301 (ZOOM MOTOR DRIVE).
35
-----
-----
ZD-PWMA
Not used. Open.
36
O
Hi/Lo
RD CW
Issues a command which determines with IC1302 (FOCUS MOTOR DRIVE).
37
-----
-----
RD-PWMA
Not used. Open.
38
I
(Pulse)
FV
Receives the vertical sync pulses that detect the iris detection area, from IC1121
(DSP).
39
I
(Pulse)
FUS-SENS
Focus motor position detection input.
40
I
(Pulse)
REM-IR
Not used. Open.
41
I
(Pulse)
ZOM-SENS
Zoom motor position detection input.
42
-----
-----
GND
Ground.
43
O
0V-5V
HAL-ADJ1
Controls the offset voltage of IC1351 (F.DET/IRIS DRIVE).
44
O
0V-5V
HAL-ADJ0
Drives bias generator in IC1351 (F.DET/IRIS DRIVE) via Q1351 (BUF) to
control the bias voltage of the Hall devices.
45
-----
-----
BATTERY
Not used. Open.
46
I
0V-5V
ZOOM-SW
Not used.
47
I
0V-3V
KEY2
48
I
0V-3V
KEY1
49
I
0V-3V
TEMP-ADJ
Temperature change detection input. Detects variations in the forward voltage
at the connected diode to correct the back-focus.
Pin
I/O
Active
Abbreviation
No.
Level
50
I
0V-3V
V-GYRO
51
I
0V-3V
H-GYRO
52
I
0V-3V
FDET
53
-----
-----
AVCC
54
-----
-----
AVCC
55
-----
-----
VCC
56
-----
-----
VCC
57
-----
-----
----------
58
-----
-----
----------
59
I
Lo
RESET-IN
60
-----
-----
VCC
61
-----
-----
STBY
62
-----
-----
VCC
63
-----
-----
----------
64
-----
-----
GND
65
I
(Pulse)
SYS-CLK
66
-----
-----
FWE
67
-----
-----
MD2
68
-----
-----
----------
69
O
Hi
HALL-G
70
-----
-----
----------
71
-----
-----
----------
72
I
(Pulse)
HD
73
-----
-----
SHUT-CTL
74
-----
-----
STROBE
75
I
(Pulse)
FP
76
O
(Pulse)
SD (232C)
77
I
(Pulse)
RD (232C)
78
I
(Pulse)
EP3/AFLH
79
-----
-----
----------
80
-----
-----
----------
81
-----
-----
----------
82
-----
-----
----------
83
O
(Pulse)
SDO
84
I
(Pulse)
SDI
85
O
(Pulse)
SCLK
86
-----
-----
DC-LIGHT-SW- Not used. Open.
OFF
87
-----
-----
----------
88
O
-----
x16/x22
89
O
-----
BW/COLOR
90
O
-----
PAL/NTSC
91
-----
-----
----------
92
I
0V-5V
F-DIAL1
93
I
0V-5V
F-DIAL2
94
I
-----
SYS-RST
95
O
Hi/Lo
BPF-N/P
96
O
(Pulse)
CK-CDS
97
O
(Pulse)
SDO-CDS
98
O
(Pulse)
CS-CDS
99
O
(Pulse)
CS-EE
100
O
(Pulse)
CS-SYC
6 - 17
6 - 18
Function
Not used. Connect to ground.
F-value detection input. Receives the F.DET voltage detected by IC1351 (F.DET/
IRIS DRIVE) and compares this with the reference voltage input via pin 53 to detect
the F-value.
Reference 3V power input.
A/D reference voltage input (connected to 3V power supply).
3V power input.
Not used. Open.
Not used. Connect to ground.
Reset signal input from IC1203 (RESET PULSE GEN.).
3V power input.
Not used. Connect to 3V power supply.
3V power input.
Not used. Open.
Grounded.
Inputs control clock pulses from IC1121 (DSP).
Not used.
Not used. Open.
Controls the amplification (gain of Hall device) of IC1351 (F.DET/IRIS DRIVE).
Not used. Open.
Horizontal sync input.
Not used. Open.
Field discrimination pulse input.
Used for initial settings and adjustment. For data communications with personal
computer.
Receives pulses which discriminate the iris detection area.
Not used. Open.
For data communications with IC1121 (DSP), IC1250 (EEPROM).
BPF (for chroma signal) setect signal output.
Transfer data to IC1101 (CDS/AGC & A/D CONV. ).
Activates data communications with IC1101 (CDS/AGC & A/D CONV. ).
Not used. Open.
Activates data communications with IC1250 (EEPROM).

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