Keyboard - EDAN M3 Service Manual

M3 Vital Signs Monitor Service Manual
logical control and other functions.
RTC
RTC can offer second, minute, hour, day, month, year and other calendar information. CPU can
gain such calendar information from RTC, it also can rewrite the data in RTC.
Ethernet Controller
Ethernet controller supports IEEE 802.3/IEEE 802.3u Ethernet standard, supports 10Mbpsdata
transmission rate. CPU exchanges data with Ethernet via Ethernet controller.
LCD Controller
LCD controller can control LCD display.

2.2.3 Keyboard

This module acts as the man-machine interface.
Schematic Diagram
Figure2-5 Schematic Diagram of Keyboard
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