参数资料
型号: RTPXA270C0C312
厂商: INTEL CORP
元件分类: 微控制器/微处理器
英文描述: 312 MHz, RISC PROCESSOR, PBGA356
封装: 13 X 13 MM, 1 MM HEIGHT, 0.50 MM PITCH, LEAD FREE, VFBGA-356
文件页数: 11/128页
文件大小: 1560K
代理商: RTPXA270C0C312
6-44
Electrical, Mechanical, and Thermal Specification
Intel PXA270 Processor
AC Timing Specifications
6.6
SSP Timing Specifications
Figure 6-29 describes the SSP timing parameters. The SSP pin timing specifications are referenced
to SSPCLK. Table 6-23 gives the values for the parameters.
Note: In Figure 6-29, read the term “tSFMV” as “TSTXV.”
Figure 6-30. Timing Diagram for SSP Slave Mode Transmitting Data to an External Peripheral
Figure 6-29. SSP Master Mode Timing Definitions
Table 6-23. SSP Master Mode Timing Specifications
Symbol
Description
Min
Max
Units
Notes
Tsfmv
SSPSCLK rise to SSPSFRM driven valid
21
ns
Trxds
SSPRXD valid to SSPSCLK fall (input setup)
11
ns
Trxdh
SSPSCLK fall to SSPRXD invalid (input hold)
0
ns
Tsfmv
SSPSCLK rise to SSPTXD valid
22
ns
SSPSCLK
SSPSFRM
SSPTXD
SSPRXD
Tsfmv
Trxds
Trxdh
PXA27x processor transmitting data
SSPSCLK
(from Peripheral)
SSPTXD
(from SSP)
PXA27x SSP (Slave Mode) transmitting data to external peripheral
SSPSFRM
(from Peripheral)
tSCLK2TXD_output_delay
tSFRM2TXD_output_delay
PXA27x processor transmitting data
SSPSCLK
(from Peripheral)
SSPTXD
(from SSP)
PXA27x SSP (Slave Mode) transmitting data to external peripheral
SSPSFRM
(from Peripheral)
tSCLK2TXD_output_delay
tSFRM2TXD_output_delay
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