參數(shù)資料
型號： MSC8256TVT1000B
廠商： Freescale Semiconductor
文件頁數(shù)： 63/70頁
文件大?。?/td> 0K
描述： IC DSP 6 CORE 1GHZ 783FCPBGA
標準包裝： 1
系列： StarCore
類型： SC3850 內(nèi)核
接口： 以太網(wǎng)，I²C，PCI，RGMII，串行 RapidIO，SGMII，SPI，UART/USART
時鐘速率： 1.0GHz
非易失內(nèi)存： ROM（96 kB）
芯片上RAM： 576kB
電壓 - 輸入/輸出： 2.50V
電壓 - 核心： 1.00V
工作溫度： -40°C ~ 105°C
安裝類型： 表面貼裝
封裝/外殼： 783-BBGA，F(xiàn)CBGA
供應(yīng)商設(shè)備封裝： 783-FCPBGA（29x29）
包裝： 托盤
MSC8256 Six-Core Digital Signal Processor Data Sheet, Rev. 6
Hardware Design Considerations
Freescale Semiconductor
66
3.5.5
Miscellaneous Pins
Table 49 lists the board connections for the pins not required by the system design. Table 49 assumes that the alternate function
of the specified pin is not used. If the alternate function is used, connect that pin as required to support the selected function.
Note:
For details on configuration, see the MSC8256 Reference Manual. For additional information, refer to the MSC815x
and MSC825x DSP Family Design Checklist.
3.6
Guide to Selecting Connections for Remote Power Supply
Sensing
To assure consistency of input power levels, some applications use a practice of connecting the remote sense signal input of an
on-board power supply to one of power supply pins of the IC device. The advantage of using this connection is the ability to
compensate for the slow components of the IR drop caused by resistive supply current path from on-board power supply to the
pins layer on the package. However, because of specific device requirements, not every ball connection can be selected as the
remote sense pin. Some of these pins must be connected to the appropriate power supply or ground to ensure correct device
functionality. Some connections supply critical power to a specific high usage area of the IC die; using such a connection as a
Table 49. Connectivity of Individual Pins When They Are Not Required
Signal Name
Pin Connection
CLKOUT
NC
EE0
GND
EE1
NC
GPIO[31–0]
NC
SCL
See the GPIO connectivity guidelines in this table.
SDA
See the GPIO connectivity guidelines in this table.
INT_OUT
NC
IRQ[15–0]
See the GPIO connectivity guidelines in this table.
NMI
VDDIO
NMI_OUT
NC
RC[21–0]
GND
STOP_BS
GND
TCK
GND
TDI
GND
TDO
NC
TMR[4–0]
See the GPIO connectivity guidelines in this table.
TMS
GND
TRST
See Section 3.1 for guidelines.
URXD
See the GPIO connectivity guidelines in this table.
UTXD
See the GPIO connectivity guidelines in this table.
DDN[1–0]
See the GPIO connectivity guidelines in this table.
DRQ[1–0]
See the GPIO connectivity guidelines in this table.
RCW_LSEL_0
GND
RCW_LSEL_1
GND
RCW_LSEL_2
GND
RCW_LSEL_3
GND
VDDIO
2.5 V
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