Mindray BC-2800 - Chapter 1 Hardware Overview; 1.1 General Hardware Description

Hardware
Chapter1 Hardware
1.1General
1.1.1Schematic
Figure 1-1 Schematic of the CPU board
The CPU, FPGA and Super I/O are the major components on the board. The
CPU carries out the instructions and functions as the core of the board. The
FPGA functions as the relay between the CPU and the Super IO. The Super I/O
includes various interfaces that can be accessed by the CPU through the FPGA.
System memories are SDRAMs. The DOM is a Disk-On-Module that stores the
system software and test data. The RTC is a real time clock. System
configurations are stored in the EEPROM. The VRAM is the memory for video
display.
1.1.2 Basic Functions of the CPU Board
To receive such analog signals as the WBC/RBC/PLT counts, HGB
measurement, aperture voltage vacuum/pressure signals, etc.
To monitor such system status as the +48V, +12V and -12V supplies of the
analog board, the +3.3V and +12V supplies of the CPU board itself and the
temperature of the whole analyzer.
To receive the keypad signal and control the keypad buzzer and LCD backlight.
BC-2800 Auto Hematology Analyzer (V1.0) 1- 1