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MCP4142T-103E/ML 数据表(PDF) 52 Page - Microchip Technology |
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MCP4142T-103E/ML 数据表(HTML) 52 Page - Microchip Technology |
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52 / 88 page  MCP414X/416X/424X/426X DS22059B-page 52 © 2008 Microchip Technology Inc. 7.6.2 CONTINUOUS READS Continuous reads allows the devices memory to be read quickly. Continuous reads are possible to all memory locations. If a non-volatile memory write cycle is occurring, then Read commands may only access the volatile memory locations. Figure 7-5 shows the sequence for three continuous reads. The reads do not need to be to the same memory address. FIGURE 7-5: Continuous Read Sequence. A D 3 A D 2 A D 1 A D 0 1 1 XXXX XXXXXX 111111 1* D 8 D 7 D 6 D 5 D 4 D 3 D 2 D 1 D 0 A D 3 A D 2 A D 1 A D 0 1 1 XXXX XXXXXX 111111 1* D 8 D 7 D 6 D 5 D 4 D 3 D 2 D 1 D 0 A D 3 A D 2 A D 1 A D 0 1 1 XXXX XXXXXX 111111 1* D 8 D 7 D 6 D 5 D 4 D 3 D 2 D 1 D 0 COMMAND BYTE DATA BYTE SDI SDO Note 1: If a Command Error (CMDERR) occurs at this bit location (*), then all following SDO bits will be driven low until the CS pin is driven inactive (VIH). |
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