MC68HC711PH8 Motorola, MC68HC711PH8 Datasheet - Page 85

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

4.6
Port F is an 8-bit bidirectional port, with both data and data direction registers. In addition to their
I/O capability, port F pins are used as the non-multiplexed low order address pins, as shown in the
following table.
The state of the pins on reset is mode dependent. In single chip or bootstrap mode, port F pins
are high-impedance inputs with selectable internal pull-up resistors (see Section 4.9). In
expanded or test modes, port F pins are low order address outputs and PORTF/DDRF are not in
the memory map.
4.6.1
The bits may be read and written at any time and are not affected by reset.
4.6.2
DDF[7:0] — Data direction for port F
MC68HC11PH8
Data direction F (DDRF)
Port F data (PORTF)
1 (set)
0 (clear) –
Port F
PORTF — Port F data register
DDRF — Data direction register for port F
–
The corresponding pin is configured as an output.
The corresponding pin is configured as an input.
Address
Address
$0005
$0003
PF0
PF1
PF2
PF3
PF4
PF5
PF6
PF7
Pin
PARALLEL INPUT/OUTPUT
DDF7 DDF6 DDF5 DDF4 DDF3 DDF2 DDF1 DDF0 0000 0000
bit 7
PF7
bit 7
Alternate
function
A0
A1
A2
A3
A4
A5
A6
A7
bit 6
bit 6
PF6
bit 5
PF5
bit 5
In expanded or test
mode, the pins
become the low
order address and
port F is not
included in the
memory map.
bit 4
bit 4
PF4
bit 3
PF3
bit 3
bit 2
bit 2
PF2
bit 1
PF1
bit 1
bit 0
PF0
bit 0
MOTOROLA
undeÞned
on reset
on reset
State
State
TPG
4-7
4