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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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MPC823 датащи(PDF) 57 Page - Freescale Semiconductor, Inc |
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MPC823 датащи(HTML) 57 Page - Freescale Semiconductor, Inc |
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57 / 70 page  MPC823 ELECTRICAL SPECIFICATIONS 57 Table 16. Serial Peripheral Interface Master Timing NUM CHARACTERISTIC 25MHZ 40MHZ 50MHZ UNIT MIN MAX MIN MAX MIN MAX 160 Master cycle time 4 1,024 4 1,024 4 1,024 tcyc 161 Master clock (SCK) high or low time 2 512 2 512 2 512 tcyc 162 Master data setup time (inputs) 50 Ñ 50 Ñ 50 Ñ ns 163 Master data hold time (inputs) 0Ñ0Ñ0Ñ ns 164 Master data valid (after SCK edge) Ñ 20 Ñ 20 Ñ 20 ns 165 Master data hold time (outputs) 0Ñ0Ñ0Ñ ns 166 Rise time output Ñ 15 Ñ 15 Ñ 15 ns 167 Fall time output Ñ 15 Ñ 15 Ñ 15 ns NOTE: The ratio SyncCLK/SMCLK must be greater than or equal to 2/1. Figure 52. SPI Master (CP=0) Timing Diagram SPICLK CI=0 (OUTPUT) SPICLK CI=1 (OUTPUT) SPMISO (INPUT) SPMOSI (OUTPUT) MSB N DATA LSB N MSBIN MSBOUT DATA LSBOUT MSBOUT 161 161 160 166 167 166 167 163 162 165 164 166 167 Freescale Semiconductor, Inc. For More Information On This Product, Go to: www.freescale.com |
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