MC68HC812A4 Datasheet, PDF (159/342 Pages) Motorola, Inc – 16-bit device composed of standard on-chip peripheral modules connected by an intermodule bus. Modules include

Clock Module
Functional Description
TEN
MCLK
REGISTER: TMSK2
BITS:
PR[2:0]
0:0:0
÷2
0:0:1
÷2
0:1:0
÷2
0:1:1
÷2
1:0:0
÷2
1:0:1
÷2
PORT T7
PAEN
GATE LOGIC
PAMOD
PULSE
ACCUMULATOR
LOW BYTE
PACLK
REGISTER: PACTL
BITS:
PAEN:CLK1:CLK0
0:X:X
1:0:0
1:0:1
PULSE
ACCUMULATOR
HIGH BYTE
PACLK ^1:1:0
256
PACLK ^1:1:1
65,536
(PAOV)
TO TIM
COUNTER
Figure 10-5. Clock Chain for TIM
Advance Information
MOTOROLA
Clock Module
MC68HC812A4 — Rev. 3.0
159