参数资料
型号: DSP56301VF100
厂商: Freescale Semiconductor
文件页数: 2/124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
1-6
Freescale Semiconductor
Signals/Connections
1.5 External Memory Expansion Port (Port A)
Note:
When the DSP56301 enters a low-power stand-by mode (Stop or Wait), it releases bus mastership and tri-
states the relevant Port A signals: A[0–23], D[0–23], AA0/RAS0AA3/RAS3, RD, WR, BB, CAS, BCLK, and
BCLK
. If hardware refresh of external DRAM is enabled, Port A exits the Wait mode to allow the refresh to
occur and then returns to the Wait mode.
1.5.1
External Address Bus
1.5.2
External Data Bus
PINIT/NMI
Input
PLL Initial/Non-Maskable Interrupt
During assertion of RESET, the value of PINIT/NMI is written into the PLL
Enable (PEN) bit of the PLL control register, determining whether the PLL is
enabled or disabled. After RESET deassertion and during normal instruction
processing, the PINIT/NMI Schmitt-trigger input is a negative-edge-triggered
Non-Maskable Interrupt (NMI) request internally synchronized to CLKOUT.
PINIT/NMI can tolerate 5 V.
Table 1-6.
External Address Bus Signals
Signal Name
Type
State During
Reset
Signal Description
A[0–23]
Output
Tri-stated
Address Bus
When the DSP is the bus master, A[0–23] specify the address for external
program and data memory accesses. Otherwise, the signals are tri-stated. To
minimize power dissipation, A[0–23] do not change state when external
memory spaces are not being accessed.
Table 1-7.
External Data Bus Signals
Signal Name
Type
State During
Reset
Signal Description
D[0–23]
Input/Output
Tri-stated
Data Bus
When the DSP is the bus master, D[0–23] provide the bidirectional data bus
for external program and data memory accesses. Otherwise, D[0–23] are tri-
stated.
Table 1-5.
Phase Lock Loop Signals (Continued)
Signal Name
Type
State During
Reset
Signal Description
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