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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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TMPR4955AF датащи(PDF) 124 Page - Toshiba Semiconductor |
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TMPR4955AF датащи(HTML) 124 Page - Toshiba Semiconductor |
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124 / 168 page  Chapter 6 TX4955A System Interface 6-52 6.3.12 Flow Control EOK EOK EOK EOK* may be used by an external agent to control the flow of processor read and write requests; while EOK EOK EOK EOK* is deasserted the processor will repeat the current address cycle until an external agent signals it is ready, by asserting EOK EOK EOK EOK*. There is a one cycle delay from the assertion of EOK EOK EOK EOK* to the state in which the Read/Write command becomes valid. EOK EOK EOK EOK* must be asserted for two consecutive cycles for the command issue completion. Examples of EOK EOK EOK EOK* use are given in Figure 6.3.23 and 6.3.24. Read Addr 812 6 11 10 9 7 5 4 3 2 1 SysAD SCycle SClock SysCmd EOK* PValid* PMaster* Figure 6.3.23 Delayed Processor Read Request EOD Data EOD Data Write Write Addr1 Addr0 812 6 11 10 9 7 5 4 3 2 1 SysAD SCycle SClock SysCmd EOK* PValid* PMaster* Figure 6.3.24 Two Processor Write Requests, Second Write Delayed |
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