signal. I / O Address DATA XXH Command / Status XX + 1H 35 2002-01-07 T6963C ● When using PPI LSI (TMP82C55) The T6963C can be connected to a PPI LSI. The port A connects to the data bus. The port C connects to the control busWR(C,RDD) CE, 36 2002-01-07 T6963C Application Circuit(1) 37 2002-01-07 T6963C