mc68hc908rc24d Freescale Semiconductor, Inc, mc68hc908rc24d Datasheet - Page 116

• Manufacturer Part Number: mc68hc908rc24d
• Description: M68hc08 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

11.5 Port C
11.5.1 Port C Data Register
Input/Output Ports (I/O)
Advance Information
116
Address: $0002
Port C is an 8-bit, general-purpose, bidirectional I/O port. PTC0–PTC3
have higher than standard current drive capabilities. Refer to
Section 19. Preliminary Electrical Specifications
drive specifications.
The port C data register (PTC) contains a data latch for each of the four
port C pins.
PTC7–PTC4 — Port C Data Bits
PTC[3:0] — Port C Data Bits
Reset:
Read:
Write:
PTC7–PTC4 pads are not bonded out. Set these ports to outputs by
writing an $FX to data direction register C and write $00 to the port C
data register after any reset to avoid floating inputs and erroneous
data.
These read/write bits are software-programmable. Data direction of
each port C pin is under the control of the corresponding bit in data
direction register C. Reset has no effect on port C data.
Bit 7
0
Figure 11-8. Port C Data Register (PTC)
= Unimplemented
Input/Output Ports (I/O)
6
0
5
0
Unaffected by reset
4
0
PTC3
3
MC68HC908RC24 — Rev. 1.1
PTC2
2
Freescale Semiconductor
for the port C
PTC1
1
PTC0
Bit 0