MC68HC711PH8 Motorola, MC68HC711PH8 Datasheet - Page 82

• Manufacturer Part Number: MC68HC711PH8
• Description: High-density Complementary Metal Oxide Semiconductor (HCMOS) Microcomputer Unit
• Manufacturer: Motorola

4
4.3
Port C is an 8-bit bidirectional port, with both data and data direction registers. In addition to their I/O
capability, port C pins are used as the non-multiplexed data bus pins, as shown in the following table.
The state of the pins on reset is mode dependent. In single chip or bootstrap mode, port C pins
are high-impedance inputs. In expanded or test modes, port C pins are the data bus I/O and
PORTC/DDRC are not in the memory map.
4.3.1
The bits may be read and written at any time and are not affected by reset.
4.3.2
DDC[7:0] — Data direction for port C
MOTOROLA
4-4
Data direction C (DDRC)
Port C data (PORTC)
1 (set)
0 (clear) –
Port C
PORTC — Port C data register
DDRC — Data direction register for port C
–
The corresponding pin is configured as an output.
The corresponding pin is configured as an input.
Address
Address
$0006
$0007
PC0
PC1
PC2
PC3
PC4
PC5
PC6
PC7
Pin
PARALLEL INPUT/OUTPUT
DDC7 DDC6 DDC5 DDC4 DDC3 DDC2 DDC1 DDC0 0000 0000
bit 7
PC7
bit 7
Alternate
function
D0
D1
D2
D3
D4
D5
D6
D7
bit 6
PC6
bit 6
PC5
bit 5
bit 5
In expanded or test
mode, the pins
become the data
bus and port C is
not included in the
memory map.
bit 4
PC4
bit 4
PC3
bit 3
bit 3
bit 2
PC2
bit 2
PC1
bit 1
bit 1
MC68HC11PH8
bit 0
PC0
bit 0
undeÞned
on reset
on reset
State
State
TPG