MCF5307CFT66B Freescale Semiconductor, MCF5307CFT66B Datasheet - Page 302
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
-
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Code Example
Table 13-3 describes TERn fields.
13.4 Code Example
The following code provides an example of how to initialize timer 0 and how to use the
timer for counting time-out periods.
MBARx EQU 0x10000 ;Defines the module base address at 0x10000
TMR0 EQU MBARx+0x140;Timer 0 register
TMR1 EQU MBARx+0x180 ;Timer 1 register
TRR0 EQU MBARx+0x144 ;Timer 0 reference register
TRR1 EQU MBARx+0x184 ;Timer 1 reference register
TCR0 EQU MBARx+0x148 ;Timer 0 capture register
TCR1 EQU MBARx+0x188 ;Timer 1 capture register
TCN0 EQU MBARx+0x14C ;Timer 0 counter
TCN1 EQU MBARx+0x18C ;Timer 1 counter
TER0 EQU MBARx+0x151 ;Timer 0 event register
TER1 EQU MBARx+0x191 ;Timer 1 event register
* TMR0 is defined as: *
*[PS]= 0xFF, divide clock by 256
*[CE] = 00disable interrupt
*[OM] = 0 output=active-low pulse
*[ORI] = 0, disable ref.interrupt
*[FRR] = 1, restart mode enabled
*[CLK] = 10, BCLKO/16
*[RST] = 0, timer 0 disabled
The simple example below uses 0 to count time-out loops. A time-out occurs when the
reference value, 0xAFAF, is reached.
timer0_ex
13-6
Bits
7–2
1
0
move.w #0xFF0C,D0
move.w D0,TMR0
move.w #0x0000,D0;writing to the timer counter with any
move.w DO,TCN0 ;value resets it to zero
move.w #AFAF,DO ;set the timer 0 reference to be
move.w #D0,TRR0 ;defined as 0xAFAF
clr.l DO
clr.l D1
clt.l D2
move.w #0x0000,D0
move,w D0,TCN0;reset the counter to 0x0000
move.b #0x03,D0 ;writing ones to TER0[REF,CAP]
move.b D0,TER0 ;clears the event flags
Name
REF
CAP
—
Reserved
Output reference event. The counter has reached the TRRn value. Setting TMRn[ORI] enables the
interrupt request caused by this event. Writing a one to REF clears the event condition.
Capture event. The counter value has been latched into TCRn. Setting TMRn[CE] enables the
interrupt request caused by this event. Writing a 1 to CAP clears the event condition.
Freescale Semiconductor, Inc.
Table 13-3. TERn Field Descriptions
For More Information On This Product,
Go to: www.freescale.com
MCF5307 User’s Manual
Description
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