MC68HC912D60A MOTOROLA [Motorola, Inc], MC68HC912D60A Datasheet - Page 238

• Manufacturer Part Number: MC68HC912D60A
• Description: Microcontrollers
• Manufacturer: MOTOROLA [Motorola, Inc]

Enhanced Capture Timer
TCTL3 — Timer Control Register 3
TCTL4 — Timer Control Register 4
Technical Data
238
RESET:
RESET:
EDG7B
EDG3B
Bit 7
Bit 7
0
0
EDG7A
EDG3A
6
0
6
0
Read or write anytime.
EDGnB, EDGnA — Input Capture Edge Control
To operate the 16-bit pulse accumulators A and B (PACA and PACB)
independently of input capture or output compare 7 and 0 respectively
the user must set the corresponding bits IOSn = 1, OMn = 0 and OLn
= 0. OC7M7 or OC7M0 in the OC7M register must also be cleared.
These eight pairs of control bits configure the input capture edge
detector circuits.
Freescale Semiconductor, Inc.
For More Information On This Product,
EDG6B
EDG2B
EDGnB
5
0
5
0
Table 14-2. Edge Detector Circuit Configuration
OMn
0
0
1
1
Go to: www.freescale.com
0
0
1
1
Table 14-1. Compare Result Output Action
Enhanced Capture Timer
EDG6A
EDG2A
4
0
EDGnA
4
0
OLn
0
1
0
1
0
1
0
1
EDG5B
EDG1B
Capture disabled
Capture on rising edges only
Capture on falling edges only
Capture on any edge (rising or falling)
3
0
3
0
Timer disconnected from output pin logic
Clear OCn output line to zero
Set OCn output line to one
EDG5A
EDG1A
Toggle OCn output line
2
0
2
0
Configuration
Action
EDG4B
EDG0B
MC68HC912D60A — Rev 3.0
1
0
1
0
EDG4A
EDG0A
Bit 0
Bit 0
0
0
MOTOROLA
$008A
$008B