MCF5307CFT66B Freescale Semiconductor, MCF5307CFT66B Datasheet - Page 264

• Manufacturer Part Number: MCF5307CFT66B
• Description: IC MPU 32BIT 66MHZ COLDF 208FQFP
• Manufacturer: Freescale Semiconductor
• Series: MCF530xr

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: -

Synchronous Operation
Figure 11-20 shows two read accesses in continuous page mode. Note that there is no
precharge between the two accesses. Also notice that the second cycle begins with a read
operation with no
Figure 11-21 shows a write followed by a read in continuous page mode. Because the bus
cycle is terminated with a
than after the read. A read requires data to be returned before the bus cycle can terminate.
Note that in continuous page mode, secondary accesses output the column address only.
11-30
Figure 11-20. Synchronous, Continuous Page-Mode Access—Consecutive Reads
RAS[0] or [1]
• Because of the nature of the internal CPU pipeline this condition does not occur
CAS[3:0]
DRAMW
BCLKO
A[31:0]
D[31:0]
SRAS
SCAS
often; however, the use of continuous page mode is recommended because it can
provide a slight performance increase.
ACTV
ACTV
t
RCD
Row
= 2
NOP
Freescale Semiconductor, Inc.
command.
For More Information On This Product,
WRITE
READ
t
CASL
command, the second cycle begins sooner after the write
Go to: www.freescale.com
MCF5307 User’s Manual
= 2
Column
NOP
READ
t
CASL
Column
= 2
NOP
NOP
t
EP
PALL