MCF5407CAI220 Freescale Semiconductor, MCF5407CAI220 Datasheet - Page 140
![IC MPU 32B 220MHZ COLDF 208-FQFP](/photos/12/22/122277/mcf5407cai220_sml.jpg)
MCF5407CAI220
Manufacturer Part Number
MCF5407CAI220
Description
IC MPU 32B 220MHZ COLDF 208-FQFP
Manufacturer
Freescale Semiconductor
Series
MCF540xr
Specifications of MCF5407CAI220
Core Processor
Coldfire V4
Core Size
32-Bit
Speed
220MHz
Connectivity
EBI/EMI, I²C, UART/USART
Peripherals
DMA, WDT
Number Of I /o
16
Program Memory Type
ROMless
Ram Size
4K x 8
Voltage - Supply (vcc/vdd)
1.65 V ~ 3.6 V
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
208-FQFP
Processor Series
MCF540x
Core
ColdFire V4
Data Bus Width
32 bit
Program Memory Size
8 KB
Data Ram Size
4 KB
Maximum Clock Frequency
162 MHz
Number Of Programmable I/os
16
Operating Supply Voltage
1.8 V to 3.3 V
Mounting Style
SMD/SMT
3rd Party Development Tools
JLINK-CF-BDM26, EWCF
Cpu Speed
220MHz
Embedded Interface Type
I2C, UART
Digital Ic Case Style
FQFP
No. Of Pins
208
Supply Voltage Range
3.3V
Rohs Compliant
Yes
For Use With
M5407C3 - KIT EVAL FOR MCF5407 W/ETHERNET
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Program Memory Size
-
Data Converters
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MCF5407CAI220
Manufacturer:
Freescale
Quantity:
789
Company:
Part Number:
MCF5407CAI220
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
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Cache Operation
4.9.3.1 Read Miss
A processor read that misses in the cache requests the cache controller to generate a bus
transaction. This bus transaction reads the needed line from memory and supplies the
required data to the processor core. The line is placed in the cache in the valid state.
4.9.3.2 Write Miss (Data Cache Only)
The cache controller handles processor writes that miss in the data cache differently for
write-through and copyback regions. Write misses to copyback regions cause the cache line
to be read from system memory, as shown in Figure 4-6.
The new cache line is then updated with write data and the M bit is set for the line, leaving
it in modified state. Write misses to write-through regions write directly to memory without
loading the corresponding cache line into the cache.
4.9.3.3 Read Hit
On a read hit, the cache provides the data to the processor core and the cache line state
remains unchanged. If the cache mode changes for a specific region of address space, lines
in the cache corresponding to that region that contain modified data are not pushed out to
memory when a read hit occurs within that line. First execute a CPUSHL instruction or set
CACR[DCINVA,ICINVA] before switching the cache mode.
1. Writing character X to 0x0B generates a write miss. Data cannot be written to an invalid line.
4-16
3. After the cache line is filled, the write that initiated the write miss (the character X) completes to 0x0B.
2. The cache line (characters A–P) is updated from system memory, and line is marked valid.
MCF5407
MCF5407
Figure 4-6. Write-Miss in Copyback Mode
X
ABCD EFGH IJKL MNOP
ABCD EXGH IJKL MNOP
0x0C
0x0C
0x0C
MCF5407 User’s Manual
0x08 0x04
0x08 0x04
0x08 0x04
Cache Line
0x00
0x00
0x00
M = 0
V = 0
M = 0
V = 1
M = 1
V = 1
Memory
System
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