参数资料
型号: DSP56301VF100
厂商: Freescale Semiconductor
文件页数: 24/124页
文件大小: 0K
描述: IC DSP 24BIT FIXED-POINT 252-BGA
产品变化通告: DSP56301 Discontinuation 12/Nov/2009
标准包装: 60
系列: DSP563xx
类型: 定点
接口: 主机接口,SSI,SCI
时钟速率: 100MHz
非易失内存: ROM(9 kB)
芯片上RAM: 24kB
电压 - 输入/输出: 3.30V
电压 - 核心: 3.30V
工作温度: -40°C ~ 100°C
安装类型: 表面贴装
封装/外壳: 252-BGA
供应商设备封装: 252-MAPBGA(21x21)
包装: 托盘
DSP56301 Technical Data, Rev. 10
1-8
Freescale Semiconductor
Signals/Connections
BB
Input/
Output
Input
Bus Busy
Indicates that the bus is active and must be asserted and deasserted
synchronous to CLKOUT. Only after BB is deasserted can the pending bus
master become the bus master (and then assert the signal again). The bus
master can keep BB asserted after ceasing bus activity, regardless of whether
BR is asserted or deasserted. This is called “bus parking” and allows the
current bus master to reuse the bus without re-arbitration until another device
requires the bus. BB is deasserted by an “active pull-up” method (that is, BB is
driven high and then released and held high by an external pull-up resistor).
BB requires an external pull-up resistor.
BL
Output
Driven high
(deasserted)
Bus Lock—BL is asserted at the start of an external divisible Read-Modify-
Write (RMW) bus cycle, remains asserted between the read and write cycles,
and is deasserted at the end of the write bus cycle. This provides an “early bus
start” signal for the bus controller. BL may be used to “resource lock” an
external multi-port memory for secure semaphore updates. Early deassertion
provides an “early bus end” signal useful for external bus control. If the
external bus is not used during an instruction cycle, BL remains deasserted
until the next external indivisible RMW cycle. The only instructions that assert
BL automatically are the BSET, CLR, and BCHG instructions when they are
used to modify external memory. An operation can also assert BL by setting
the BLH bit in the Bus Control Register.
CAS
Output
Tri-stated
Column Address Strobe
When the DSP is the bus master, DRAM uses CAS to strobe the column
address. Otherwise, if the Bus Mastership Enable (BME) bit in the DRAM
Control Register is cleared, the signal is tri-stated.
BCLK
Output
Tri-stated
Bus Clock
When the DSP is the bus master, BCLK is active when the OMR[ATE] is set.
When BCLK is active and synchronized to CLKOUT by the internal PLL, BCLK
precedes CLKOUT by one-fourth of a clock cycle.
BCLK
Output
Tri-stated
Bus Clock Not
When the DSP is the bus master, BCLK is the inverse of the BCLK signal.
Otherwise, the signal is tri-stated.
Table 1-8.
External Bus Control Signals (Continued)
Signal Name
Type
State During
Reset
Signal Description
相关PDF资料
PDF描述
DSP56303VL100B1 IC DSP 24BIT 100MHZ 196-BGA
DSP56311VF150B1 IC DSP 24BIT 150MHZ 196-BGA
DSP56321VF200R2 IC DSP 24BIT 200MHZ 196-BGA
DSP56852VFE IC DSP 16BIT 120MHZ 81-MAPBGA
DSP56854FGE IC DSP 16BIT 120MHZ 128-LQFP
相关代理商/技术参数
参数描述
DSP56301VF80 功能描述:数字信号处理器和控制器 - DSP, DSC MAP DSP RoHS:否 制造商:Microchip Technology 核心:dsPIC 数据总线宽度:16 bit 程序存储器大小:16 KB 数据 RAM 大小:2 KB 最大时钟频率:40 MHz 可编程输入/输出端数量:35 定时器数量:3 设备每秒兆指令数:50 MIPs 工作电源电压:3.3 V 最大工作温度:+ 85 C 封装 / 箱体:TQFP-44 安装风格:SMD/SMT
DSP56301VF80B1 功能描述:数字信号处理器和控制器 - DSP, DSC DSP56301VF80B1 RoHS:否 制造商:Microchip Technology 核心:dsPIC 数据总线宽度:16 bit 程序存储器大小:16 KB 数据 RAM 大小:2 KB 最大时钟频率:40 MHz 可编程输入/输出端数量:35 定时器数量:3 设备每秒兆指令数:50 MIPs 工作电源电压:3.3 V 最大工作温度:+ 85 C 封装 / 箱体:TQFP-44 安装风格:SMD/SMT
DSP56301VL100 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:24-Bit Digital Signal Processor
DSP56301VL80 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:24-Bit Digital Signal Processor
DSP56302 制造商:MOTOROLA 制造商全称:Motorola, Inc 功能描述:DSP56301 Digital Signal Processor