1-8
700 Series
❑
Keyboard Controller (KBC)
One M38802M4 chip is used.
The KBC, which includes the keyboard scan and keyboard interface controllers,
controls the internal keyboard, external keyboard, and PS/2 mouse.
❑
Real Time Clock (RTC)
A T9934 chip with 128 bytes of memory is used. Fourteen (14) bytes are used for the
calendar and clock, and the remaining 114 are used for the system configuration data.
❑
Super I/O
TM
National Semiconductor PC87336VLJ has the following functions:
- Two UARTs
16550A equivalent (One SIO is used for SIR.)
- One FDC
µPD765A equivalent
- One parallel port control supported ECP/EPP
❑
Audio Drive
One ESS688 Audio Drive
®
chip is used. This chip contains a D/A converter and an
A/D converter that offer 16-bit stereo sound.
One YMF262 chip (OPL3) is used. This chip is an FM synthesizer chip.
Summary of Contents for Tecra 700CS
Page 4: ...1 4 700 Series Figure 1 2 700 Series system unit configuration ...
Page 20: ...1 20 700 Series ...
Page 23: ...700 Series 2 3 Figure 2 1 Troubleshooting flowchart 2 2 ...
Page 54: ...2 34 700 Series ...
Page 124: ...3 70 700 Series ...
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Page 186: ...B 2 700 Series B 2 System Board Back View Figure B 2 System Board layout back ...
Page 218: ...G 2 700 Series ...