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| 型号： | SCF5250AG120 |
| 厂商： | Freescale Semiconductor |
| 文件页数： | 23/56页 |
| 文件大小： | 0K |
| 描述： | IC MPU COLDFIRE 120MHZ 144-QFP |
| 标准包装： | 300 |
| 系列： | SCF52xx |
| 核心处理器： | Coldfire V2 |
| 芯体尺寸： | 32-位 |
| 速度： | 120MHz |
| 连通性： | EBI/EMI，I²C，IDE，MMC，SPI，UART/USART |
| 外围设备： | DMA，I²S，POR，串行音频，WDT |
| 输入/输出数： | 57 |
| 程序存储器类型： | ROMless |
| RAM 容量： | 128K x 8 |
| 电压 - 电源 (Vcc/Vdd)： | 1.08 V ~ 1.32 V |
| 数据转换器： | A/D 6x12b |
| 振荡器型： | 内部 |
| 工作温度： | -20°C ~ 70°C |
| 封装/外壳： | 144-LQFP |
| 包装： | 托盘 |
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SCF5250 Data Sheet: Technical Data, Rev. 1.3
Freescale Semiconductor
3
1.2.2
DMA Controller
The SCF5250 provides four fully programmable DMA channels for quick data transfer. Single and dual
address mode is supported with the ability to program bursting and cycle stealing. Data transfer is
selectable as 8, 16, 32, or 128-bits. Packing and unpacking is supported.
Two internal audio channels and the dual UART can be used with the DMA channels. All channels can
perform memory to memory transfers. The DMA controller has a user-selectable, 24- or 16-bit counter and
a programmable DMA exception handler.
External requests are not supported.
1.2.3
Enhanced Multiply and Accumulate Module (EMAC)
The integrated EMAC unit provides a common set of DSP operations and enhances the integer multiply
instructions in the ColdFire architecture. The EMAC provides functionality in three related areas:
1. Faster signed and unsigned integer multiplies
2. New multiply-accumulate operations supporting signed and unsigned operands
3. New miscellaneous register operations
Multiplies of 16x16 and 32x32 with 48-bit accumulates are supported in addition to a full set of extensions
for signed and unsigned integers plus signed, fixed-point fractional input operands. The EMAC has a
single-clock issue for 32x32-bit multiplication instructions and implements a four-stage execution
pipeline.
1.2.4
Instruction Cache
The instruction cache improves system performance by providing cached instructions to the execution unit
in a single clock. The SCF5250 processor uses a 8K-byte, direct-mapped instruction cache to achieve 107
MIPS at 120 MHz. The cache is accessed by physical addresses, where each 16-byte line consists of an
address tag and a valid bit. The instruction cache also includes a bursting interface for 16-bit and 8-bit port
sizes to quickly fill cache lines.
1.2.5
Internal 128-KByte SRAM
The 128-KByte on-chip SRAM is available in two banks, SRAM0 (64K) and SRAM1 (64K). It provides
one clock-cycle access for the ColdFire core. This SRAM can store processor stack and critical code or
data segments to maximize performance. Memory in SRAM1 can be accessed under DMA.
1.2.6
SDRAM Controller
The SCF5250 SDRAM controller provides a glueless interface for one bank of SDRAM up to 32 MB
(256 Mbits). The controller supports a 16-bit data bus. A unique addressing scheme allows for increases
in system memory size without rerouting address lines and rewiring boards. The controller operates in
page mode, non-page mode, and burst-page mode and supports SDRAMS.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SCF5250CAG120 | 功能描述:IC MPU COLDFIRE 120MHZ 144-QFP RoHS:是 类别:集成电路 (IC) >> 嵌入式 - 微控制器， 系列:SCF52xx 标准包装:330 系列:- 核心处理器:- 芯体尺寸:8/16-位 速度:40MHz 连通性:UART/USART 外围设备:DMA，PWM，WDT 输入/输出数:32 程序存储器容量:- 程序存储器类型:外部程序存储器 EEPROM 大小:- RAM 容量:- 电压 - 电源 (Vcc/Vdd):4.5 V ~ 5.5 V 数据转换器:- 振荡器型:内部 工作温度:-40°C ~ 85°C 封装/外壳:100-BQFP 包装:管件 |
| SCF5250CPV120 | 制造商:MOTOROLA 制造商全称:Motorola, Inc 功能描述:SCF5250 Integrated ColdFire Microprocessor |
| SCF5250DAG120 | 制造商:Freescale Semiconductor 功能描述:AMADEUS PLUS - Bulk |
| SCF5250LAG100 | 功能描述:IC MPU COLDFIRE 100MHZ 144-LQFP RoHS:否 类别:集成电路 (IC) >> 嵌入式 - 微控制器， 系列:SCF52xx 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:260 系列:73S12xx 核心处理器:80515 芯体尺寸:8-位 速度:24MHz 连通性:I²C，智能卡，UART/USART，USB 外围设备:LED，POR，WDT 输入/输出数:9 程序存储器容量:64KB（64K x 8） 程序存储器类型:闪存 EEPROM 大小:- RAM 容量:2K x 8 电压 - 电源 (Vcc/Vdd):2.7 V ~ 5.5 V 数据转换器:- 振荡器型:内部 工作温度:-40°C ~ 85°C 封装/外壳:68-VFQFN 裸露焊盘 包装:管件 |
| SCF5250LPV100 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
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