MCF5307CFT66B Freescale Semiconductor, MCF5307CFT66B Datasheet - Page 328
MCF5307CFT66B
Manufacturer Part Number
MCF5307CFT66B
Description
IC MPU 32BIT 66MHZ COLDF 208FQFP
Manufacturer
Freescale Semiconductor
Series
MCF530xr
Datasheets
1.MCF5307AI66B.pdf
(484 pages)
2.MCF5307AI66B.pdf
(16 pages)
3.MCF5307AI66B.pdf
(2 pages)
Specifications of MCF5307CFT66B
Core Processor
Coldfire V3
Core Size
32-Bit
Speed
66MHz
Connectivity
EBI/EMI, I²C, UART/USART
Peripherals
DMA, POR, WDT
Number Of I /o
16
Program Memory Type
ROMless
Ram Size
4K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 3.6 V
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
208-FQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Program Memory Size
-
Data Converters
-
Available stocks
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Quantity
Price
Company:
Part Number:
MCF5307CFT66B
Manufacturer:
FREESCAL
Quantity:
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Company:
Part Number:
MCF5307CFT66B
Manufacturer:
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Operation
14.5 Operation
This section describes operation of the clock source generator, transmitter, and receiver.
14.5.1 Transmitter/Receiver Clock Source
BCLKO serves as the basic timing reference for the clock source generator logic, which
consists of a clock generator and a programmable 16-bit divider dedicated to the UART.
The clock generator cannot produce standard baud rates if BCLKO is used, so the 16-bit
divider should be used.
14.5.1.1 Programmable Divider
As Figure 14-19 shows, the UART transmitter and receiver can use the following clock
sources:
The choice of TIN or BCLKO is programmed in the UCSR.
14-18
• An external clock signal on the TIN pin that can be divided by 16. When not divided,
• BCLKO supplies an asynchronous clock source that is divided by 32 and then
TIN provides a synchronous clock mode; when divided by 16, it is asynchronous.
divided by the 16-bit value programmed in UDUn and UDLn. See Section 14.3.11,
“UART Divider Upper/Lower Registers (UDUn/UDLn).”
BCLKO
TOUT
RxD
TxD
TIN
If TIN is a clocking source for either the timer or UART, the
timer module cannot use TIN for timer capture.
Figure 14-19. Clocking Source Diagram
Freescale Semiconductor, Inc.
Rx Buffer
Tx Buffer
For More Information On This Product,
Rx
Tx
Timer Module
On-Chip
Go to: www.freescale.com
MCF5307 User’s Manual
Clocking sources programmed in UCSR
NOTE:
Generator
Prescaler
Prescaler
Clock
x16
x1
UART
TIN
TIN
Divider
16-Bit
Prescaler
x32
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