MCF5272CVF66J Freescale Semiconductor, MCF5272CVF66J Datasheet - Page 390
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MCF5272CVF66J
Manufacturer Part Number
MCF5272CVF66J
Description
IC MCU 166MHZ 196MAPBGA
Manufacturer
Freescale Semiconductor
Series
MCF527xr
Specifications of MCF5272CVF66J
Core Processor
Coldfire V2
Core Size
32-Bit
Speed
66MHz
Connectivity
EBI/EMI, Ethernet, I²C, SPI, UART/USART, USB
Peripherals
DMA, WDT
Number Of I /o
32
Program Memory Size
16KB (4K x 32)
Program Memory Type
ROM
Ram Size
1K x 32
Voltage - Supply (vcc/vdd)
3 V ~ 3.6 V
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
196-MAPBGA
Processor Series
MCF527x
Core
ColdFire V2
3rd Party Development Tools
JLINK-CF-BDM26, EWCF
Development Tools By Supplier
NNDK-MOD5272-KIT, NNDK-MOD5270-KIT
Leaded Process Compatible
No
Rohs Compliant
No
Peak Reflow Compatible (260 C)
No
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Data Converters
-
Lead Free Status / Rohs Status
No
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MCF5272CVF66J
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
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UART Modules
16.5.6
The software flowchart,
16.5.6.1
Figure 16-31
16-30
•
•
•
UART module initialization—These routines consist of SINIT and CHCHK (sheets 1 and 2).
Before SINIT is called at system initialization, the calling routine allocates 2 words on the system
stack. On return to the calling routine, SINIT passes UART status data on the stack. If SINIT finds
no errors, the transmitter and receiver are enabled. SINIT calls CHCHK to perform the checks.
When called, SINIT places the UART in local loop-back mode and checks for the following errors:
— Transmitter never ready
— Receiver never ready
— Parity error
— Incorrect character received
I/O driver routine—This routine (sheets 4 and 5) consists of INCH, the terminal input character
routine which gets a character from the receiver, and OUTCH, which sends a character to the
transmitter.
Interrupt handling—Consists of SIRQ (sheet 4), which is executed after the UART module
generates an interrupt caused by a change-in-break (beginning of a break). SIRQ then clears the
interrupt source, waits for the next change-in-break interrupt (end of break), clears the interrupt
source again, then returns from exception processing to the system monitor.
Programming
UART Module Initialization Sequence
shows the UART module initialization sequence.
UART module registers can be accessed by word or byte operations, but
only data byte D[7:0] is valid.
Figure 16-31. UART Mode Programming Flowchart (Sheet 1 of 5)
MCF5272 ColdFire
Figure
16-31, consists of the following:
®
Integrated Microprocessor User’s Manual, Rev. 3
NOTE
Freescale Semiconductor
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