MSC8157SVT1000A Freescale Semiconductor, MSC8157SVT1000A Datasheet - Page 75
MSC8157SVT1000A
Manufacturer Part Number
MSC8157SVT1000A
Description
Digital Signal Processors & Controllers - DSP, DSC Qual'ed 8157 NE FG 1GHz 0 to 105c
Manufacturer
Freescale Semiconductor
Datasheet
1.MSC8157TVT1000A.pdf
(95 pages)
Specifications of MSC8157SVT1000A
Rohs
yes
Core
SC3850
Data Bus Width
32 bit
Program Memory Size
32 KB
Data Ram Size
512 KB
Number Of Programmable I/os
32
Number Of Timers
2
Operating Supply Voltage
0.97 V to 1.05 V
Maximum Operating Temperature
+ 105 C
Package / Case
FCPBGA-783
Mounting Style
SMD/SMT
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3.6.2.2
SD_REF_CLK[1–2] and SD_REF_CLK[1–2] were designed to work with a spread spectrum clock (+0 to 0.5% spreading at
30–33 KHz rate is allowed), assuming both ends have the same reference clock and the industry protocol supports it. For better
results, use a source without significant unintended modulation.
3.6.2.3
The AC requirements for PCI Express implementations have separate requirements for the Tx and Rx lines. The MSC8157
supports a 2.5 Gbps or a 5.0 Gbps PCI Express interface defined by the PCI Express Base Specification, Revision 2.0. The 2.5
Gbps transmitter specifications are defined in
Freescale Semiconductor
V
V
SD_REF_CLKn
SD_REF_CLKn
IH
IL
= –200 mV
= +200 mV
0.0 V
Spread Spectrum Clock
PCI Express AC Physical Layer Specifications
Figure 14. Single-Ended Measurement Points for Rise and Fall Time Matching
–
Figure 13. Differential Measurement Points for Rise and Fall Time
Rise Edge Rate
MSC8157 Six-Core Digital Signal Processor Data Sheet, Rev. 1
Table 33
and the receiver specifications are defined in
Fall Edge Rate
Electrical Characteristics
Table
34. The 5.0 Gbps
75