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參數(shù)資料
| 型號： | MSC8254TVT1000B |
| 廠商： | FREESCALE SEMICONDUCTOR INC |
| 元件分類： | 數(shù)字信號處理 |
| 英文描述： | 0-BIT, OTHER DSP, PBGA783 |
| 封裝： | 29 X 29 MM, LEAD FREE, PLASTIC, FCBGA-783 |
| 文件頁數(shù)： | 59/68頁 |
| 文件大小： | 909K |
| 代理商： | MSC8254TVT1000B |
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MSC8254 Quad-Core Digital Signal Processor Data Sheet, Rev. 4
Hardware Design Considerations
Freescale Semiconductor
62
3.5.1.4
DDR2 Unused MAPAR Pin Connections
When the MAPAR signals are not used, refer to Table 43 to determine the correct pin connections.
3.5.2
HSSI-Related Pins
3.5.2.1
HSSI Port Is Not Used
The signal names in Table 44 and Table 45 are generic names for a RapidIO interface. For actual pin names refer to Table 1.
3.5.2.2
HSSI Specific Lane Is Not Used
Table 43. Connectivity of MAPAR Pins for DDR2
Signal Name
Pin connection
MAPAR_OUT
NC
MAPAR_IN
NC
Notes:
1.
For the signals listed in this table, the initial M stands for M1 or M2 depending on which DDR controller is used for DDR2.
2.
For MSC8254 Revision 1 silicon, these pins were connected to GND. For newer revisions of the MSC8254, connecting these
pins to GND increases device power consumption.
Table 44. Connectivity of Serial RapidIO Interface Related Pins When the RapidIO Interface Is Not Used
Signal Name
Pin Connection
SR_IMP_CAL_RX
NC
SR_IMP_CAL_TX
NC
SR[1–2]_REF_CLK
SXCVSS
SR[1–2]_REF_CLK
SXCVSS
SR[1–2]_RXD[3–0]
SXCVSS
SR[1–2]_RXD[3–0]
SXCVSS
SR[1–2]_TXD[3–0]
NC
SR[1–2]_TXD[3–0]
NC
SR[1–2]_PLL_AVDD
In use
SR[1–2]_PLL_AGND
In use
SXPVSS
In use
SXCVSS
In use
SXPVDD
In use
SXCVDD
In use
Note:
All lanes in the HSSI SerDes should be powered down. Refer to the MSC8254 Reference Manual for details.
Table 45. Connectivity of HSSI Related Pins When Specific Lane Is Not Used
Signal Name
Pin Connection
SR_IMP_CAL_RX
In use
SR_IMP_CAL_TX
In use
SR[1–2]_REF_CLK
In use
SR[1–2]_REF_CLK
In use
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| MSC8254TVT800B | 功能描述:數(shù)字信號處理器和控制器 - DSP, DSC DSPStarcore 4-core RoHS:否 制造商:Microchip Technology 核心:dsPIC 數(shù)據(jù)總線寬度:16 bit 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:2 KB 最大時鐘頻率:40 MHz 可編程輸入/輸出端數(shù)量:35 定時器數(shù)量:3 設(shè)備每秒兆指令數(shù):50 MIPs 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-44 安裝風(fēng)格:SMD/SMT |
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| MSC8256ETAG1000B | 制造商:Freescale Semiconductor 功能描述:DSP,STARCORE, 6-CORE - Bulk |
| MSC8256SAG1000B | 制造商:Freescale Semiconductor 功能描述:DSP,STARCORE,6-CORE R2.1 - Bulk |
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