129Port 6Port 0Port 78Port 1Port 2P00P60P67P70P72P10P07P17P20P27Port 13Port 3Port 4P120P127P130Port 12P131P30P37P40-P47Port 5P50P57CHAPTER 6 PORT FUNCTIONS6.1 Port FunctionsTheμPD78054 and 78054Y subseries units incorporate two input ports and sixty-seven input/output ports. Figure6-1 shows the port configuration. Every port is capable of 1-bit and 8-bit manipulations and can carry out considerablyvaried control operations. Besides port functions, the ports can also serve as on-chip hardware input/output pins.Figure 6-1. Port Types