Motorola Espresso Maker MC68340 User Manual
MOTOROLA
MC68340 USER’S MANUAL
8- 5
EXTERNAL
INTERFACE
SIGNALS
INTERFACE
SIGNALS
TIMER 2
TIN2
TGATE2
TOUT2
TIN1
TGATE1
TOUT1
CLOCK
LOGIC
PRESCALER
COUNTER
OUTPUT
CONTROL
I
M
B
INTERRUPT
CONTROL
TIMER 1
CLOCK
LOGIC
PRESCALER
COUNTER
OUTPUT
CONTROL
INTERRUPT
CONTROL
EXTERNAL
INTERFACE
SIGNALS
INTERFACE
SIGNALS
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
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
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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