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MCP48CMB02 Datasheet(PDF) 74 Page - Microchip Technology |
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MCP48CMB02 Datasheet(HTML) 74 Page - Microchip Technology |
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74 / 106 page ![]() MCP48CXBXX DS20006160A-page 74 2019 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. Read commands may only access volatile memory locations during an MTP Write Cycle. 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. 12-bit data 10-bit data 8-bit data SDI AD 4 AD 3 AD 2 AD 1 AD 0 C 1 C 0 X X X X X D 11 D 10 D 09 D 08 D 07 D 06 D 05 D 04 D 03 D 02 D 01 D 00 ** ** * 0 0 * * * * * * * * * * * * * * * * * SDO 11 11 11 1 1 00 00 11 11 11 11 11 11 Valid(1) 11 11 11 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Invalid(2) Note 1: The Data bits depend on the resolution of the device: 12-bit = D11:D00, 10-bit = D09:D00, and 8-bit = D07:D00. The unimplemented bits are output as ‘0’ and data are right justified for easy Host Controller operation (no data manipulation after reading the register value). 2: If an Error Condition occurs (CMDERR = ‘0’), all the following SDO bits will be output as ‘0’ until the CMDERR condition is cleared (the CS pin is forced to the Inactive state). 3: This CMDERR bit will be forced to ‘0’, regardless if this Address + Command combination is valid. This command will not be completed and requires the CS pin to return to VIH to clear the CMDERR condition. SDI AD 4 AD 3 AD 2 AD 1 AD 0 C 1 C 0 X X X X X D 11 D 10 D 09 D 08 D 07 D 06 D 05 D 04 D 03 D 02 D 01 D 00 ** ** * 0 0 * * * * * * * * * * * * * * * * * SDO 11 11 11 1 1 00 00 11 11 11 11 11 11 Valid(1) 00 00 00 0 (3) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Invalid(2) SDI AD 4 AD 3 AD 2 AD 1 AD 0 C 1 C 0 X X X X X D 11 D 10 D 09 D 08 D 07 D 06 D 05 D 04 D 03 D 02 D 01 D 00 ** ** * 0 0 * * * * * * * * * * * * * * * * * SDO 11 11 11 1 1 00 00 11 11 11 11 11 11 Valid(1) 00 00 00 0 (3) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Invalid(2) |
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