Freescale Semiconductor, Inc.
TIMER 1
TIN1
CLOCK
LOGIC
TGATE1
PRESCALER
EXTERNAL
INTERFACE
SIGNALS
COUNTER
OUTPUT
CONTROL
TOUT1
INTERRUPT
CONTROL
I
M
B
TIMER 2
TIN2
CLOCK
LOGIC
TGATE2
PRESCALER
COUNTER
EXTERNAL
INTERFACE
SIGNALS
TOUT2
OUTPUT
CONTROL
INTERRUPT
CONTROL
Figure 8-3. External and Internal Interface Signals
8.2.1 Timer Input (TIN1, TIN2)
This input can be programmed to be the clock that causes events to occur in the counter
and prescaler. TINx is internally synchronized to the system clock to guarantee that a valid
TINx level is recognized. Additionally, the high and low levels of TINx must each be stable
MOTOROLA
MC68340 USER’S MANUAL
8- 5
For More Information On This Product,
Go to: www.freescale.com
FREESCALE [ Freescale ]
