Scanner Unit
A844
HARDWARE OVERVIEW
SM 18-3 A265/A267
2. DETAILED SECTION DESCRIPTIONS
2.1 HARDWARE OVERVIEW
The scanner controller contains image input and network interface circuits. The
image data from the BICU is compressed in the image input circuit, then the data
goes to the network through the network interface circuit.
Each circuit has a CPU and flash memory IC. The functions of each major
component are as follows.
MBBICU
CPU
UPD705101GM
(33.3 MHz)
ASIC
UPD65842
ASIC
DISCII
RJ45
Flash
ROM
(2 MB)
FIFO
(256 kB)
PHY
ICS1892
DRAM
(16 MB)
CPU
MC68340VP
(25.166 MHz)
DRAM
(2 MB)
Bridge
AG1001V
Flash
ROM
(2 MB)
MAC
AM79C971
SRAM
EEPROM
Network
SCANNER CONTROL
BOARD
- Network Interface Circuit -
DRAM
SIMM
Slot
Flash
Memory
Card
Slot
- Image Input Circuit -
A844D500.WMF
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