Hitachi VK-S454R Service Manual page 19

Description of Operation > Microprocessor Pin Function Table
Pin
Abbreviation I/O
No.
78 EP3 I
79 ----- -----
80 ----- -----
81 ----- -----
82 ----- -----
83 SDO O
84 SDI I
85 SCLK O
86 ----- -----
87 ----- -----
88 ----- -----
89 ----- -----
90 ----- -----
91 ----- -----
92 ----- -----
93 ----- -----
94 SYS-RST -----
95 STBY_5V O
96 CK-CDS O
97 SDO-CDS O
98 CS-CDS O
99 CS-EE1 O
100 CS-EE2 O
Active
Level
(Pulse) Receives pulses which discriminate the iris detection area.
----- Not used. Open.
-----
-----
-----
(Pulse) For data communications with IC1121 (CAMERA DSP), IC1202 (ADJ
(Pulse) EEPROM), IC1250 (RESET EEPROM).
(Pulse)
----- Not used. Open.
-----
-----
-----
-----
-----
-----
-----
-----
Hi/Lo 5V regulator control output. (Hi: On/Lo:Off)
(Pulse) Transfer data to IC1101 (CDS/AGC & A/D CONV. ).
(Pulse)
(Pulse) Activates data communications with IC1101 (CDS/AGC & A/D
CONV. ).
(Pulse) Activates data communications with IC1202 (ADJ EEPROM).
(Pulse) Activates data communications with IC1203 (RESET EEPROM).
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Function