MC68HC708AS48 FREESCALE [Freescale Semiconductor, Inc], MC68HC708AS48 Datasheet - Page 194

• Manufacturer Part Number: MC68HC708AS48
• Description: Advance Information
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

Input/Output (I/O) Ports
15.5 Port C
15.5.1 Port C Data Register
Advance Information
194
NOTE:
Functions:
Alternate
Address:
Port C is a 6-bit, general-purpose, bidirectional I/O port that shares one
of its pins with the bus clock (MCLK).
The port C data register contains a data latch for each of the six port C
pins.
PTC[5:0] — Port C Data Bits
PTC5 is available only in the 64-pin QFP package.
MCLK — T12 System Bus 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.
The bus clock (MCLK) is driven out of PTC2 when enabled by the
MCLKEN bit in PTCDDR7.
$0002
Bit 7
R
R
0
Figure 15-8. Port C Data Register (PTC)
Input/Output (I/O) Ports
= Reserved
R
6
0
PTC5
5
Unaffected by Reset
PTC4
4
PTC3
3
MC68HC708AS48
MCLK
PTC2
2
PTC1
1
MOTOROLA
—
Rev. 4.0
PTC0
Bit 0