4.7 Control Register....................................................... 39
4.8 Status Register......................................................... 40
4.9 Clear Interrupt and FIFO......................................... 41
4.10 D/A Channel 0 Output ............................................. 42
4.11 D/A Channel 1 Output ............................................. 42
4.12 D/A Reference Control ............................................ 43
4.13 Digital I/O Registers ................................................. 44
4.14 Programmable Timer/Counter Registers.................... 44
Chapter 5: Calibration............................................ 4 5
5.1 Introduction ............................................................. 46
5.2 VR Assignment ........................................................ 46
5.3 A/D Calibration ....................................................... 47
5.4 D/A Calibration ....................................................... 48
5.5 Self A/D Calibration................................................. 49
Appendix A: 82C54 Counter Chip Functions ...... 5 1
A.1 The Intel 82C54 ...................................................... 52
A.2 Counter Read/Write and Control Registers ............... 53
A.3 Counter Operating Modes ....................................... 56
A.4 Counter Operations ................................................. 58