M16C User Manual.pdf

Programmable I/O PortsMitsubishi microcomputersM16C / 62 GroupSINGLE-CHIP 16-BIT CMOS MICROCOMPUTERPort Pi direction register (Note)b7 b6 b5 b4 b3 b2 b1 b0Symbol Address When resetPDi (i = 0 to 10, except 8) 03E216, 03E316, 03E616, 03E716, 03EA16 001603EB16, 03EE16, 03EF16, 03F316, 03F616Bit symbolPDi_0PDi_1PDi_2PDi_3PDi_4PDi_5PDi_6Bit namePort Pi0 direction registerPort Pi1 direction registerPort Pi2 direction registerPort Pi3 direction registerPort Pi4 direction registerPort Pi5 direction registerPort Pi6 direction registerFunction0 : Input mode(Functions as an input port)1 : Output mode(Functions as an output port)(i = 0 to 10 except 8)R WPDi_7 Port Pi7 direction registerNote: Set bit 2 of protect register (address 000A16) to “1” before rewriting tothe port P9 direction register.Port P8 direction registerb7 b6 b5 b4 b3 b2 b1 b0Symbol Address When resetPD8 03F216 00X000002Bit symbolPD8_0PD8_1PD8_2PD8_3Bit namePort P80 direction registerPort P81 direction registerPort P82 direction registerPort P83 direction registerFunction0 : Input mode(Functions as an input port)1 : Output mode(Functions as an output port)PD8_4 Port P84 direction registerNothing is assigned.In an attempt to write to this bit, write “0”. The value, if read, turns out to beindeterminate.PD8_6 Port P86 direction register 0 : Input mode(Functions as an input port)1 : Output modePD8_7 Port P87 direction register (Functions as an output port)R WFigure 2.15.2. Programmable I/O ports-related registers (1)450