
General Description
MC68HC08AZ32
18
General Description
MOTOROLA
Port A input/output
(I/O) pins
(PTA7
–
PTA0)
PTA7–PTA0 are general-purpose bidirectional I/O port pins. See
I/O
Ports
on page 321.
Port B I/O pins
(PTB7/ATD7DPTB0/
ATD0)
Port B is an 8-bit special function port that shares all eight pins with the
analog to digital convertor (ADC). See
Analog-to-Digital Converter (ADC)
on page 301 and
I/O Ports
on page
321.
Port C I/O pins
(PTC5DPTC0)
PTC5
–
PTC3 and
PTC1
–
PTC0 are general-purpose bidirectional I/O
port pins. PTC2/MCLK is a special function port that shares its pin with
the system clock. See
I/O Ports
on page 321.
Port D I/O pins
(PTD7DPTD0)
Port D is an 8-bit special function port that shares two of its pins with the
timer interface modules (TIMA and TIMB). see
Timer Interface Module A (TIMA)
on page 245 and
Timer Interface Module B (TIMB)
on page 271.
Port E I/O pins
(PTE7/SPSCKDPTE0/
TxD)
Port E is an 8-bit special function port that shares two of its pins with the
timer interface module (TIMA), four of its pins with the Serial Peripheral
Interface Module (SPI), and two of its pins with the Serial
Communication Interface Module (SCI). See
Serial Communications Interface Module (SCI)
on page 169,
Serial Peripheral Interface Module (SPI)
on page 209,
Timer Interface Module A (TIMA)
on page 245 and
I/O Ports
on page
321.
Port F I/O pins
(PTF6DPTF0/TACH2)
Port F is a 7-bit special function port that shares four of its pins with the
timer interface modules. See
Timer Interface Module A (TIMA)
on page
245,
Timer Interface Module B (TIMB)
on page 271 and
I/O Ports
on
page 321.
8-gen