MC68340AG16VE Freescale Semiconductor, MC68340AG16VE Datasheet - Page 347

• Manufacturer Part Number: MC68340AG16VE
• Description: IC MPU 32BIT 16MHZ 144-LQFP
• Manufacturer: Freescale Semiconductor

Specifications of MC68340AG16VE

• Processor Type: M683xx 32-Bit
• Speed: 16MHz
• Voltage: 3.3V
• Mounting Type: Surface Mount
• Package / Case: 144-LQFP
• Controller Family/series: 68K
• Core Size: 32 Bit
• No. Of I/o's: 16
• Cpu Speed: 16MHz
• No. Of Timers: 2
• Embedded Interface Type: UART
• Digital Ic Case Style: LQFP
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -

8.1.1.4 CLOCK SELECTION LOGIC. The clock selection logic consists of two
multiplexers that select the clocks applied to the prescaler and counter. The first
multiplexer (labeled clock logic in Figure 8-2) selects between the clock input to the timer
(TINx) or one-half the frequency of the system clock (CLKOUT). This output of the first
multiplexer (called selected clock) is applied to both the 8-bit prescaler and the second
multiplexer. The second multiplexer selects the clock for the 16-bit counter, which is either
the selected clock or the 8-bit prescaler output.
8.1.2 Internal Control Logic
The timer receives operation commands on the IMB and, in turn, issues appropriate
operation signals to the internal timer control logic. This mechanism allows the timer
registers to be accessed and programmed. Refer to 8.4 Register Description for
additional information.
MOTOROLA
M
B
I
CLOCK
Freescale Semiconductor, Inc.
MUX
Figure 8-2. Timer Functional Diagram
For More Information On This Product,
(SYSTEM CLOCK)
MODULE CONFIGURATION REGISTER
MC68340 USER’S MANUAL
Go to: www.freescale.com
INTERRUPT REGISTER
CONTROL REGISTER
PRELOAD 1 REGISTER
PRELOAD 2 REGISTER
COMPARE REGISTER
STATUS REGISTER
COUNTER REGISTER
COUNTER
16-BIT
TIMER
COUNTER
CLOCK
MUX
TIMEOUT
PRESCALER
CLOCK
LOGIC
COMPARATOR
8-BIT
SELECTED
CLOCK
16-BIT
TIN
TGATE
TOUT
EXTERNAL
INTERFACE
8- 3