MC68HC812A4 Datasheet, PDF (207/342 Pages) Motorola, Inc – 16-bit device composed of standard on-chip peripheral modules connected by an intermodule bus. Modules include

Standard Timer Module
General-Purpose I/O Ports
12.11.2 Timer Port Data Direction Register
Address: $00AF
Bit 7
6
5
4
3
2
1
Bit 0
Read:
Bit 7
6
5
4
3
2
1
Bit 0
Write:
Reset: 0
0
0
0
0
0
0
0
Figure 12-26. Timer Port Data Direction Register (DDRT)
Read: Anytime
Write: Anytime
Bits 7–0 — TIMPORT Data Direction Bits
These bits control the port logic of PORTT. Reset clears the timer port
data direction register, configuring all timer port pins as inputs.
1 = Corresponding pin configured as output
0 = Corresponding pin configured as input
NOTE:
By setting the IOSx bit input capture configuration no matter what the
state of the data direction register is, the timer forces output compare
pins to be outputs and input capture pins to be inputs.
Advance Information
MOTOROLA
Standard Timer Module
MC68HC812A4 — Rev. 3.0
207