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参数资料
| 型号： | MSC8144E |
| 厂商： | FREESCALE SEMICONDUCTOR INC |
| 元件分类： | 数字信号处理 |
| 英文描述： | 0-BIT, 150 MHz, OTHER DSP, PBGA783 |
| 封装： | 29 X 29 MM, LEAD FREE, PLASTIC, FCPBGA-783 |
| 文件页数： | 32/80页 |
| 文件大小： | 2284K |
| 代理商： | MSC8144E |
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MSC8144E Quad Core Digital Signal Processor Data Sheet, Rev. 0
Electrical Characteristics
Freescale Semiconductor
38
2.7.3.1
Power-On Reset (PORESET) Pin
Asserting PORESET initiates the power-on reset flow. PORESET must be asserted externally for at least 32 CLKIN cycles after
VDD and VDDIO are both at their nominal levels.
2.7.3.2
Reset Configuration
The MSC8144E has two mechanisms for writing the reset configuration:
Through the I
2C port
Through external pins
Through internal hard coded
Twenty-three signals (see Section 1 for signal description details) are sampled during the power-on reset sequence to define the
Reset Word Configuration Source and operating conditions:
RCW_SRC[2–0]
RC[16–0]
The RCFG_CLKIN_RNG pin must be valid during power-on or hard reset sequence. The STOP_BS pin must be always valid
and is also sampled during power-on reset sequence for RCW loading from an I2C EEPROM.
2.7.3.3 Reset Timing Tables
Table 24. Timing for a Reset Configuration Write
No.
Characteristics
Expression
Max
Min
Unit
1
Required external PORESET duration minimum
25 MHz <= CLKIN < 44 MHz
44 MHz <= CLKIN < 66 MHz
66 MHz <= CLKIN < 100 MHz
100 MHz <= CLKIN < 133 MHz
32/CLKIN
1280
728
485
320
727
484
320
241
ns
2
Delay from de-assertion of external PORESET to HRESET deassertion for
external pins and hard coded RCW
25 MHz <= CLKIN < 66 MHz
66 MHz <= CLKIN <= 133 MHz
Delay from de-assertion of external PORESET to HRESET deassertion for
loading RCW the I2C interface
25 MHz <= CLKIN < 44 MHz
44 MHz <= CLKIN < 66 MHz
66 MHz <= CLKIN < 100 MHz
100 MHz <= CLKIN < 133 MHz
15369/CLKIN
34825/CLKIN
92545/CLKIN
107435/CLKIN
124208/CLKIN
157880/CLKIN
615
528
3702
2441
1882
1579
233
262
2103
1627
1242
1187
μs
3
Delay from HRESET deassertion to SRESET deassertion
REFCLK = 25 MHz to 133 MHz
16/CLKIN
640
120
ns
Note:
Timings are not tested, but are guaranteed by design.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MSC8144EC | 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:Quad Core Digital Signal Processor |
| MSC8144ESVT1000B | 制造商:Freescale Semiconductor 功能描述:DSP 32-BIT 1GHZ 1000MIPS 783-PIN FCBGA BOX - Trays 制造商:Freescale Semiconductor 功能描述:ENCRYPTION PACSUN R2.1 783FCPBGA |
| MSC8144ESVT800A | 制造商:Freescale Semiconductor 功能描述:DSP 32BIT 800MHZ 800MIPS 783FCBGA - Trays |
| MSC8144ESVT800B | 制造商:Freescale Semiconductor 功能描述:DSP 32-BIT 800MHZ 800MIPS 783-PIN FCBGA EACH - Bulk 制造商:Freescale Semiconductor 功能描述:ENCRYPTION PACSUN R2.1 783FCPBGA |
| MSC8144ETVT1000A | 制造商:Freescale Semiconductor 功能描述:DSP 32-BIT 1GHZ 1000MIPS 783-PIN FCBGA - Bulk |
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