參數(shù)資料
型號(hào): EWIXP460AC
廠商: INTEL CORP
元件分類: 微控制器/微處理器
英文描述: 400 MHz, RISC PROCESSOR, PBGA544
封裝: LEAD FREE, PLASTIC, BGA-544
文件頁數(shù): 64/163頁
文件大小: 1123K
代理商: EWIXP460AC
Electrical Specifications
May 2005
Intel IXP45X and Intel IXP46X Product Line of Network Processors Datasheet
156
Document Number: 306261-002
5.6.2.8
Serial Peripheral Port Interface Timing
Figure 43.
Serial Peripheral Interface Timing
Table 77.
Serial Peripheral Port Interface Timing Values
Symbol
Parameter
Min.
Max.
Units
Notes
TPER_INTCLK
Minimum and maximum clock periods which can
be produced by the SSP_SCLK when the clock is
being generated from the internal 3.7033MHz
clock.
.0072
1.8432
MHz
TPER_EXTCLK
Minimum and maximum clock period which can be
produced by the SSP_SCLK when the clock is
being generated from the externally supplied
maximum clock rate of 33 MHz clock
(SSP_EXTCLK).
.06445
16.5
MHz
TIS
Input Setup time for data prior to the valid edge of
SSP_SCLK. These signals include SSP_SRXD.
15
ns
TIH
Input hold time for data after the to the valid edge
of SSP_SCLK. These signals include SSP_SRXD.
0ns
TDOV
SSP_SCLK clock to output valid delay from output
signals. These signals include SSP_STXD and
SSP_SFRM.
16
ns
TDOH
Output data hold valid from valid edge of
SSP_SCLK. These signals include SSP_STXD
and SSP_SFRM.
1ns
TOV
Output Valid Delay from SSP_EXTCLK to
SSP_SCLK in external clock mode
215
ns
1. Timing was designed for a system load between 5pF and 40pF
2. Clock jitter on the SSPSCLK is designed to be an average of the specified clock frequency. The SSPSCLK
jitter specification is unspecified.
SSPEXT CLK
SSPSCLK
SSPINPUT S
SSPOUT PUT S
T
OV
T
IS
T
IH
T
DOV
T
DOH
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