MC68HC08BD24 Datasheet, PDF (193/244 Pages) Motorola, Inc – HCMOS Microcontroller Unit

15.3 Port A
Port A is an 8-bit special-function port that shares all eight of its pins with
the pulse width modulator (PWM).
15.3.1 Port A Data Register
The port A data register (PTA) contains a data latch for each of the eight
port A pins.
Address: $0000
Read:
Write:
Bit 7
PTA7
6
PTA6
5
PTA5
4
PTA4
3
PTA3
2
PTA2
1
PTA1
Reset:
Unaffected by reset
Alternate
Function:
PWM15
PWM14
PWM13
PWM12
PWM11
PWM10
PWM9
Figure 15-1. Port A Data Register (PTA)
Bit 0
PTA0
PWM8
PTA7–PTA0 — Port A Data Bits
These read/write bits are software programmable. Data direction of
each port A pin is under the control of the corresponding bit in data
direction register A. Reset has no effect on port A data.
PWM15–PWM8 — PWM Outputs 15–8
The PWM output enable bits PWM15E–PWM8E, in PWM control
register 2 (PWMCR2) enable port A pins as PWM output pins. (See
15.3.3 Port A Options.)
MC68HC08BD24 — Rev. 1.1
Freescale Semiconductor
Technical Data
193