参数资料
型号: RTPXA270C5C520
厂商: INTEL CORP
元件分类: 微控制器/微处理器
英文描述: 32-BIT, 520 MHz, RISC PROCESSOR, PBGA356
封装: 13 X 13 MM, 1.0MM PITCH, LEAD FREE, VFBGA-356
文件页数: 32/44页
文件大小: 1302K
代理商: RTPXA270C5C520
Electrical Specifications
38
Intel PXA255 Processor Electrical, Mechanical, and Thermal Specification
4.9.3
Boundary Scan Test Signal Timings
Table 25, “Boundary Scan Test Signal Timing” shows the boundary scan test signal timing.
Figure 8. SSP AC Timing Definitions
Table 24. SSP AC Timing Specifications
Symbol
Description
Min
Max
Units
Notes
Tsfmv
SCLK_C rise to SFRM_C driven valid
21
ns
Trxds
RXD_C valid to SCLK_C fall (input setup)
11
ns
Trxdh
SCLK_C fall to RXD_C invalid (input
hold)
0
ns
Tsfmv
SCLK_C rise to TXD_C valid
22
ns
A4774-01
SCLK_C
SFRM_C
TXD_C
RXD_C
Tsfmv
Trxds
Trxdh
Table 25. Boundary Scan Test Signal Timing (Sheet 1 of 2)
Symbol
Parameter
Min
Max
Units
Notes
TBSF
TCK frequency
0.0
33.33
MHz
TBSCH
TCK high time
15.0
ns
Measured at 1.5 V
TBSCL
TCK low time
15.0
ns
Measured at 1.5 V
TBSCR
TCK rise time
5.0
ns
0.8 V to 2.0 V
TBSCF
TCK fall time
5.0
ns
2.0 V to 0.8 V
TBSIS1
Input setup to TCK TDI, TMS
4.0
ns
TBSIH1
Input hold from TCK TDI, TMS
6.0
ns
TBSIS2
Input setup to TCK nTRST
25.0
ns
TBSIH2
Input hold from TCK nTRST
3.0
ns
TBSOV1 TDO valid delay
1.5
6.9
ns
Relative to falling edge of TCK
TOF1
TDO float delay
1.1
5.4
ns
Relative to falling edge of TCK
TOV12
All outputs (non-test) valid delay
1.5
6.9
ns
Relative to falling edge of TCK
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