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        Port 005  -  8237A-5 Channel 2 Word count

        All PCs except PCjr: Write expect start count LSB, then
        MSB. Write automatically sets current count. Operation
        progresses until the current count reaches zero. Read
        returns start count LSB, then MSB. The base count cannot
        be obtained from this register.

See Also: 8237A-5 004

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