MC68HC08AZ0 Datasheet, PDF (346/444 Pages) Motorola, Inc – Advance Information

I/O Ports
Freescale Semiconductor, Inc.
Port F
Port F is a 7-bit special function port that shares four of its pins with the
timer interface module (TIMA-6) and two of its pins with the timer
interface module (TIMB)).
Port F data register The port F data register contains a data latch for each of the seven port
(PTF)
F pins.
PTF
$0009
Read:
Write:
Reset:
Bit 7
0
6
5
4
3
2
1
Bit 0
PTF6 PTF5 PTF4 PTF3 PTF2 PTF1 PTF0
Unaffected by reset
Alternate
Function:
TBCH1 TBCH0 TACH5 TACH4 TACH3 TACH2
= Unimplemented
Figure 16. Port F data register (PTF)
PTF[6:0] — Port F data bits
These read/write bits are software programmable. Data direction of
each port F pin is under the control of the corresponding bit in data
direction register F. Reset has no effect on PTF[6:0].
TACH[5:2] — Timer A channel I/O bits
The PTF3/TACH5–PTF0/TACH2 pins are the TIM input
capture/output compare pins. The edge/level select bits,
ELSxB:ELSxA, determine whether the PTF3/TACH5–PTF0/TACH2
pins are timer channel I/O pins or general-purpose I/O pins.
MC68HC08AZ0
344
I/O Ports
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