MC68000 MOTOROLA [Motorola, Inc], MC68000 Datasheet - Page 86

• Manufacturer Part Number: MC68000
• Manufacturer: MOTOROLA [Motorola, Inc]

System Integration Block (SIB)
3.5.1 Timer Key Features
The two identical general-purpose timer units have the following features:
3-36
• Maximum Period of 16 Seconds (at 16.67 MHz)
• 60-ns Resolution (at 16.67 MHz)
• Programmable Sources for the Clock Input
• Input Capture Capability
• Output Compare with Programmable Mode for the Output Pin
• Two Timers Cascadable to Form a 32-Bit Timer
• Free Run and Restart Modes
WATCHDOG TIMER
TCN3
TRR3
TMR1
TCN1
TRR1
TCR1
TER1
GENERAL-PURPOSE TIMERS
15
15
15
15
15
15
TIMER 1
PRESCALER
TIMER 2
DIVIDER
REFERENCE REGISTER
REFERENCE REGISTER
CAPTURE REGISTER
TIMER COUNTER
MODE REGISTER
TIMER COUNTER
7
Figure 3-8. Timer Block Diagram
EVENT REGISTER
MODE BITS
MC68302 USER’S MANUAL
CLOCK
0
0
0
0
0
0
0
GENERATOR
DETECTION
DIVIDE BY
CAPTURE
CLOCK
TIMER
256
INTERNAL
MASTER CLOCK/16
OR MASTER CLOCK/1
TIN1
INTERNAL
MASTER CLOCK/16
WDOG
TOUT1
MOTOROLA