参数资料
型号: KMC8144VT800B
厂商: Freescale Semiconductor
文件页数: 64/80页
文件大小: 0K
描述: IC DSP 783FCPBGA
标准包装: 2
系列: StarCore
类型: SC3400 内核
接口: EBI/EMI,以太网,I²C,PCI,Serial RapidIO,SPI,TDM,UART,UTOPIA
时钟速率: 800MHz
非易失内存: ROM(96 kB)
芯片上RAM: 10.5MB
电压 - 输入/输出: 3.30V
电压 - 核心: 1.00V
工作温度: 0°C ~ 90°C
安装类型: 表面贴装
封装/外壳: 783-BBGA,FCBGA
供应商设备封装: 783-FCPBGA(29x29)
包装: 托盘
Figure 40 shows the test access port timing diagram
TCK
(Input)
TDI
TMS
(Input)
TDO
(Output)
t TDOHOV
t TDIVKH
Input Data Valid
Output Data Valid
t TDIXKH
t TDOHOZ
TDO
(Output)
Figure 40. Test Access Port Timing
Figure 41 shows the TRST timing diagram.
TRST
(Input)
t TRST
Figure 41. TRST Timing
3
Hardware Design Considerations
The following sections discuss areas to consider when the MSC8144 device is designed into a system.
3.1
3.1.1
Power-on Sequence
Use the following guidelines for power-on sequencing:
?
?
?
There are no dependencies in power-on/power-off sequence between V DDM3 and V DD supplies.
There are no dependencies in power-on/power-off sequence between RapidIO supplies: V DDSXC , V DDSXP ,
V DDRIOPLL and other MSC8144 supplies.
V DDPLL should be coupled with the V DD power rail with extremely low impedance path.
External voltage applied to any input line must not exceed the related to this port I/O supply by more than 0.6 V at any time,
including during power-up. Some designs require pull-up voltages applied to selected input lines during power-up for
configuration purposes. This is an acceptable exception to the rule during start-up. However, each such input can draw up to 80
mA per input pin per MSC8144 device in the system during start-up. An assertion of the inputs to the high voltage level before
power-up should be with slew rate less than 4 V/ns.
MSC8144 Quad Core Digital Signal Processor Data Sheet, Rev. 16
64
Freescale Semiconductor
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