MC68HC08AZ60A Datasheet, PDF (317/480 Pages) Motorola, Inc – Microcontrollers

I/O Ports
Port A
Table 20-1. I/O Port Register Summary (Continued)
Register Name
Bit 7
6
5
4
3
2
1 Bit 0 Addr.
Data Direction Register G (DDRG) ^{R: 0}
W:
Data Direction Register H (DDRH) ^{R: 0}
W:
0
0
0
0 _{DDRG2 DDRG1 DDRG0 $000E}
0
0
0
0
0 _{DDRH1 DDRH0 $000F}
= Unimplemented
20.3 Port A
Port A is an 8-bit general-purpose bidirectional I/O port.
20.3.1 Port A Data Register (PTA)
The port A data register contains a data latch for each of the eight port
A pins.
Bit 7
6
5
4
3
2
PTA
$0000
Read:
PTA7
Write:
PTA6
PTA5
PTA4
PTA3
PTA2
Reset:
Unaffected by reset
Figure 20-1. Port A data register (PTA)
1
PTA1
Bit 0
PTA0
PTA[7:0] — 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.
MC68HC08AZ60A — Rev 0.0
MOTOROLA
I/O Ports
Advance Information
317