Datasheet

637
• Bit 3—PD3 Mode (PD3MD): Selects the function of the PD3/D3 pin.
Bit 3: PD3MD Description
0 General input/output (PD3) (initial value) (D3 in on-chip ROM invalid mode)
1 Data input/output (D3) (PD3 in single chip mode)
• Bit 2—PD2 Mode (PD2MD): Selects the function of the PD2/D2 pin.
Bit 2: PD2MD Description
0 General input/output (PD2) (initial value) (D2 in on-chip ROM invalid mode)
1 Data input/output (D2) (PD2 in single chip mode)
• Bit 1—PD1 Mode (PD1MD): Selects the function of the PD1/D1 pin.
Bit 1: PD1MD Description
0 General input/output (PD1) (initial value) (D1 in on-chip ROM invalid mode)
1 Data input/output (D1) (PD1 in single chip mode)
• Bit 0—PD0 Mode (PD0MD): Selects the function of the PD0/D0 pin.
Bit 0: PD0MD Description
0 General input/output (PD0) (initial value) (D0 in on-chip ROM invalid mode)
1 Data input/output (D0) (PD0 in single chip mode)