XC908AS60ACFU Motorola Semiconductor Products, XC908AS60ACFU Datasheet - Page 360

• Manufacturer Part Number: XC908AS60ACFU
• Description: MC68HC908AZ60A, MC68HC908AS60A Hcmos Microcontroller Unit Technical Data
• Manufacturer: Motorola Semiconductor Products

Input/Output Ports
22.5 Port C
22.5.1 Port C Data Register
Technical Data
360
Functions:
Alternate
Address:
Port C is an 6-bit general-purpose bidirectional I/O port. Note that PTC5
is only available on 64-pin package options.
The port C data register contains a data latch for each of the six port C
pins.
PTC[5:0] — Port C Data Bits
MCLK — System Clock Bit
Reset:
Read:
Write:
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 (5:0).
The system clock is driven out of PTC2 when enabled by MCLKEN bit
in PTCDDR7.
$0002
Bit 7
R
R
0
Figure 22-8. Port C Data Register (PTC)
= Reserved
Input/Output Ports
R
6
0
PTC5
5
Unaffected by Reset
PTC4
4
PTC3
3
MC68HC908AZ60A — Rev 2.0
MCLK
PTC2
2
PTC1
1
MOTOROLA
PTC0
Bit 0