MC68HC812A4 Datasheet, PDF (99/342 Pages) Motorola, Inc – 16-bit device composed of standard on-chip peripheral modules connected by an intermodule bus. Modules include

Bus Control and Input/Output (I/O)
Registers
6.4.6 Port C Data Direction Register
Address: $0006
Bit 7
6
5
4
3
2
1
Read:
DDRC7 DDRC6 DDRC5 DDRC4 DDRC3 DDRC2 DDRC1
Write:
Reset: 0
0
0
0
0
0
0
Figure 6-6. Port C Data Direction Register (DDRC)
Bit 0
DDRC0
0
Read: Anytime, if register is in the map
Write: Anytime, if register is in the map
DDRC is not in the on-chip map in expanded and peripheral modes.
This register determines the primary direction for each port C pin when
functioning as a general-purpose I/O port.
1 = Associated pin is an output.
0 = Associated pin is a high-impedance input.
Advance Information
MOTOROLA
Bus Control and Input/Output (I/O)
MC68HC812A4 — Rev. 3.0
99