MC68HC812A4 Datasheet, PDF (192/342 Pages) Motorola, Inc – 16-bit device composed of standard on-chip peripheral modules connected by an intermodule bus. Modules include

Standard Timer Module
12.6.7 Timer Control Registers 1 and 2
Address: $0088
Bit 7
6
5
4
3
2
1
Bit 0
Read:
OM7
OL7
OM6
OL6
OM5
OL5
OM4
OL4
Write:
Reset: 0
0
0
0
0
0
0
0
Figure 12-12. Timer Control Register 1 (TCTL1)
Address: $0089
Bit 7
6
5
4
3
2
1
Bit 0
Read:
OM3
OL3
OM2
OL2
OM1
OL1
OM0
OL0
Write:
Reset: 0
0
0
0
0
0
0
0
Figure 12-13. Timer Control Register 2 (TCTL2)
Read: Anytime
Write: Anytime
OMx/OLx — Output Mode/Output Level Bits
These bit pairs select the output action to be taken as a result of a
successful output compare. When either OMx or OLx is set and the
IOSx bit is set, the pin is an output regardless of the state of the
corresponding DDRT bit.
Table 12-1. Selection of Output Compare Action
OMx:OLx
Action on Output Compare
00
Timer disconnected from output pin logic
01
Toggle OCn output line
10
Clear OCn output line
11
Set OCn output line
Channel 7 shares a pin with the pulse accumulator input pin. To use the
PAI input, clear both the OM7 and OL7 bits and clear the OC7M7 bit in
the output compare 7 mask register.
MC68HC812A4 — Rev. 3.0
192
Standard Timer Module
Advance Information
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