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8355 N/B MAINTENANCE
8355 N/B MAINTENANCE
35
One I
2
C bus interface
Host Interface
• 8-bit host interface port
• Three host interrupt requests (HIRQ1, HIRQ11, HIRQ12)
• Regular and fast A20 gate output
• Two register sets, each with two data registers and a status register
A/D converter –
10-bit resolutions
8 channels – single or scan mode (selectable)
Start of A/D conversion can be externally triggered
Sample-and-hold function
D/A converter –
8-bit resolutions
2 channels
I/O ports –
74 input/output lines (16 of which can drive LEDs)
8 input-only lines