參數(shù)資料
型號(hào)： MCF52234CAF60
廠商： FREESCALE SEMICONDUCTOR INC
元件分類(lèi)： 微控制器/微處理器
英文描述： 32-BIT, FLASH, 60 MHz, RISC MICROCONTROLLER, PQFP80
封裝： LQFP-80
文件頁(yè)數(shù)： 3/48頁(yè)
文件大?。?/td> 633K
代理商： MCF52234CAF60
MCF52235 Family Configurations
MCF52235 ColdFire Microcontroller Data Sheet, Rev. 0
Preliminary
Freescale Semiconductor
11
16-state controller, an instruction register, and three test registers (a 1-bit bypass register, a 256-bit
boundary-scan register, and a 32-bit ID register). The boundary scan register links the device’s pins into
one shift register. Test logic, implemented using static logic design, is independent of the device system
logic.
The MCF52235 implementation can do the following:
Perform boundary-scan operations to test circuit board electrical continuity
Sample MCF52235 system pins during operation and transparently shift out the result in the
boundary scan register
Bypass the MCF52235 for a given circuit board test by effectively reducing the boundary-scan
register to a single bit
Disable the output drive to pins during circuit-board testing
Drive output pins to stable levels
1.2.5
On-Chip Memories
1.2.5.1
SRAM
The SRAM module provides a general-purpose 32-Kbyte memory block that the ColdFire core can access
in a single cycle. The location of the memory block can be set to any 32-Kbyte boundary within the
4-Gbyte address space. This memory is ideal for storing critical code or data structures and for use as the
system stack. Because the SRAM module is physically connected to the processor's high-speed local bus,
it can quickly service core-initiated accesses or memory-referencing commands from the debug module.
The SRAM module is also accessible by the DMA. The dual-ported nature of the SRAM makes it ideal
for implementing applications with double-buffer schemes, where the processor and a DMA device
operate in alternate regions of the SRAM to maximize system performance.
1.2.5.2
Flash
The ColdFire Flash Module (CFM) is a non-volatile memory (NVM) module that connects to the
processor’s high-speed local bus. The CFM is constructed with four banks of 32K x 16-bit Flash arrays to
generate 256 Kbytes of 32-bit Flash memory. These arrays serve as electrically erasable and
programmable, non-volatile program and data memory. The Flash memory is ideal for program and data
storage for single-chip applications, allowing for field reprogramming without requiring an external high
voltage source. The CFM interfaces to the ColdFire core through an optimized read-only memory
controller which supports address speculation and interleaved accesses from the 2-cycle Flash arrays for
improved performance. For operation at reduced core frequencies, the access time can be decreased (under
program control) to a single-cycle access. A backdoor mapping of the Flash memory is used for all
program, erase, and verify operations, as well as providing a read datapath for the DMA. Flash memory
may also be programmed via the EzPort, which is a serial Flash programming interface that allows the
Flash to be read, erased and programmed by an external controller in a format compatible with most SPI
bus Flash memory chips. This allows easy device programming via Automated Test Equipment or bulk
programming tools.
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MCF5307FT66B 32-BIT, 66 MHz, RISC PROCESSOR, PQFP208
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MCF52234CAL60 功能描述:32位微控制器 - MCU KIRIN2E EPP RoHS:否 制造商:Texas Instruments 核心:C28x 處理器系列:TMS320F28x 數(shù)據(jù)總線寬度:32 bit 最大時(shí)鐘頻率:90 MHz 程序存儲(chǔ)器大小:64 KB 數(shù)據(jù) RAM 大小:26 KB 片上 ADC:Yes 工作電源電壓:2.97 V to 3.63 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:LQFP-80 安裝風(fēng)格:SMD/SMT
MCF52234CVM60 功能描述:32位微控制器 - MCU KIRIN2E 121 MAPBGA EPP RoHS:否 制造商:Texas Instruments 核心:C28x 處理器系列:TMS320F28x 數(shù)據(jù)總線寬度:32 bit 最大時(shí)鐘頻率:90 MHz 程序存儲(chǔ)器大小:64 KB 數(shù)據(jù) RAM 大小:26 KB 片上 ADC:Yes 工作電源電壓:2.97 V to 3.63 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:LQFP-80 安裝風(fēng)格:SMD/SMT
MCF52234CVM60J 功能描述:32位微控制器 - MCU MCU 32-Bit RoHS:否 制造商:Texas Instruments 核心:C28x 處理器系列:TMS320F28x 數(shù)據(jù)總線寬度:32 bit 最大時(shí)鐘頻率:90 MHz 程序存儲(chǔ)器大小:64 KB 數(shù)據(jù) RAM 大小:26 KB 片上 ADC:Yes 工作電源電壓:2.97 V to 3.63 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:LQFP-80 安裝風(fēng)格:SMD/SMT
MCF52235 制造商:FREESCALE 制造商全稱(chēng):Freescale Semiconductor, Inc 功能描述:ColdFire Microcontroller
MCF52235_06 制造商:FREESCALE 制造商全稱(chēng):Freescale Semiconductor, Inc 功能描述:ColdFire㈢ Microcontroller
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