Panasonic KX-FT21BX

CIRCUIT OPERATIONS
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KX-FT21LA
9-2. SENSOR DETECTION
When CN1(8) (OPSEL) is "L", the detection of the document sensor and read start position sensor are available.
9-3. LCD CONTROL
"KTXD", "KSCLK", "KLATCH" and "KSTART" are sent as D4~D7 to control the LCD.
LCD
D4~D7
E
RS