3. Summary of Board functions
3.1.2
Reading Controller
A. Overview
• This controller performs reading controls that form the nucleus of the ESP3 LSI. It has a
CCD output image process circuit, binary image process circuit, motor control circuit and
sensor I/F circuit.
B. Block diagram
BCR I/F
AFE
PIX
CXA2045AQ
Scanner motor control signal
Inverter control signal
Sensor output signal
8
CCD
A/D
8 bit
CXD2302Q
multilevel data
Multiplex
PIX
Theory of Operation Ver. 1.0 Aug. 2005
Image process LSI
ESP3
CLOCK
PIX (binary)
EDH control signal
Serial synchronous signal
Sensor output signal
DEM-LSI
Engine I/F
4040T2E608AA