MCF5407CAI220 Freescale Semiconductor, MCF5407CAI220 Datasheet - Page 70
![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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Features and Enhancements
2.1.2.1 Instruction Fetch Pipeline (IFP)
Because the fetch and execution pipelines are decoupled by a ten-instruction FIFO buffer,
the IFP can prefetch instructions before the OEP needs them, minimizing stalls.
2.1.2.1.1 Branch Acceleration
To maximize the performance of conditional branch instructions, the IFP implements a
sophisticated two-level acceleration mechanism. The first level is an 8-entry, direct-mapped
branch cache with 2 bits for indicating four prediction states (strongly/weakly
taken/not-taken) for each entry. The branch cache also provides the association between
instruction addresses and the corresponding target address. In the event of a branch cache
hit, if the branch is predicted as taken, the branch cache sources the target address from the
IC1 stage back into the IAG to redirect the prefetch stream to the new location.
The branch cache implements instruction folding, so conditional branch instructions
correctly predicted as taken can execute in zero cycles. For conditional branches with no
information in the branch cache, a second-level, direct-mapped prediction table is accessed.
Each of its 128 entries uses the same 2-bit prediction mechanism as the branch cache.
If a branch is predicted as taken, branch acceleration logic in the IED stage generates the
target address. Other change-of-flow instructions, including unconditional branches,
jumps, and subroutine calls, use a similar mechanism where the IFP calculates the target
address. The performance of subroutine return instruction (RTS) is improved through the
use of a four-entry, LIFO hardware return stack. In all cases, these mechanisms allow the
IFP to redirect the fetch stream down the predicted path well ahead of instruction execution.
2.1.2.2 Operand Execution Pipeline (OEP)
The two instruction registers in the decode stage (DS) of the OEP are loaded from the FIFO
instruction buffer or are bypassed directly from the instruction early decode (IED). The
OEP consists of two, traditional two-stage RISC compute engines with a dual-ported
register file access feeding an arithmetic logic unit (ALU).
The compute engine at the top of the OEP (the address ALU) is used typically for operand
address calculations; the execution ALU at the bottom is used for instruction execution. The
resulting structure provides 4 Gbytes/S operand bandwidth (at 162 MHz) to the two
compute engines and supports single-cycle execution speeds for most instructions,
including all load and store operations and most embedded-load operations. The V4 OEP
supports the ColdFire Revision B instruction set, which adds a few new instructions to
improve performance and code density.
The OEP also implements the following advanced performance features:
2-4
• Stalls are minimized by dynamically basing the choice between the address ALU or
• The address ALU and register renaming resources together can execute heavily used
execution ALU for instruction execution on the pipeline state.
opcodes and forward results to subsequent instructions with no pipeline stalls.
MCF5407 User’s Manual
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