MCF5272CVF66 Freescale Semiconductor, MCF5272CVF66 Datasheet - Page 208
MCF5272CVF66
Manufacturer Part Number
MCF5272CVF66
Description
IC MPU 32BIT 66MHZ 196-MAPBGA
Manufacturer
Freescale Semiconductor
Series
MCF527xr
Specifications of MCF5272CVF66
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
Family Name
MCF5xxx
Device Core
ColdFire
Device Core Size
32b
Frequency (max)
66MHz
Instruction Set Architecture
RISC
Supply Voltage 1 (typ)
3.3V
Operating Temp Range
-40C to 85C
Operating Temperature Classification
Industrial
Mounting
Surface Mount
Pin Count
196
Package Type
MA-BGA
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Data Converters
-
Lead Free Status / Rohs Status
Not Compliant
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SDRAM Controller
9.10.2
Like the read operations, shown in
issue the address (T1) and another (T2) to determine whether the access is page hit or miss. In the
burst-write, page-miss example, shown in
miss (T2), the precharge old page (T3) and activate new page cycles (T5) are required. Cycle T6 is a wait
state for SDRAM activation command as it is in
9-18
A10_PRECHG
SDADR[13:0]
SDBA[1:0]
SDCLKE
SDCLK
BS[3:0]
D[31:0]
SDWE
SDCS
RAS0
CAS0
SDRAM Write Accesses
T0
Figure 9-11. SDRAM Burst Write, 32-Bit Port, Page Miss, Access = 7-1-1-1
CF2 Core
T1
Address
Issue
MCF5272 ColdFire
T2
Miss?
Page
Hit or
Figure 9-9
Precharge
Old Page
T3
®
Bank x
Integrated Microprocessor User’s Manual, Rev. 3
Figure
T4
and
Figure
9-11, after the SDRAM determines that this is a page
Figure
New Page
T5
Activate
Bank y
Row
Row
9-9.
9-10, the write operations require one cycle to
T6
T7
Write
Data
1
Col
T8
Write
Data
2
Col
Bank y
Freescale Semiconductor
T9
Write
Data
3
Col
T10
Write
Data
4
Col
T11
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