Labels:text | screenshot | font | number OCR: D7 D6 D5 D4 D3 D2 DI DO 9 87 6543 2 Data Port 9 8 7.6.5 4 38 2 Pin Numbers for 26-pin 11:10 12 13 DB-25 Connector Status Port 11:10 12 13 Pin Numbers for 36-pini Centronics Connector $ 17*16 14*1* Control Port $ 86'31 14:1) Table 1: Pin number for the bits of the three printer-adapter ports. * Indicates that the pin-to-bit relation is inverted: A logic O at the pin corresponds to a logic 1 in the corresponding register. The S'entry at bit 4 in the control-port register is the interrupt-enable bir.
