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MCP3918 Datenblatt(PDF) 65 Page - Microchip Technology |
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MCP3918 Datenblatt(HTML) 65 Page - Microchip Technology |
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65 / 88 page ![]() 2014 Microchip Technology Inc. DS20005287A-page 65 MCP3918 9.0 MCP3918 INTERNAL REGISTERS The addresses associated with the internal registers are listed in Table 9-1. This section also describes the registers in detail. All registers are 24-bit long registers, which can be addressed and read separately. The format of the data register (0x00) can be changed through the WIDTH_CRC and WIDTH_DATA<1:0> bits in the STATUSCOM register. The READ<1:0> and WRITE bits define the groups and types of registers for continuous read/write communication or looping on address sets, as shown in Table 9-2. TABLE 9-1: MCP3918 REGISTER MAP Address Name Bits R/W Description 0x00 CHANNEL0 24 R Channel 0 ADC Data <23:0>, MSB first 0x01 Unused 24 U Unused 0x02 Unused 24 U Unused 0x03 Unused 24 U Unused 0x04 Unused 24 U Unused 0x05 Unused 24 U Unused 0x06 Unused 24 U Unused 0x07 Unused 24 U Unused 0x08 MOD 24 R/W Delta-sigma Modulators Output Value 0x09 PHASE 24 U Phase Delay Configuration Register 0x0A Unused 24 U Unused 0x0B GAIN 24 R/W Gain Configuration Register 0x0C STATUSCOM 24 R/W Status and Communication Register 0x0D CONFIG0 24 R/W Configuration Register 0x0E CONFIG1 24 R/W Configuration Register 0x0F OFFCAL_CH0 24 R/W Offset Correction Register - Channel 0 0x10 GAINCAL_CH0 24 R/W Gain Correction Register - Channel 0 0x11 Unused 24 U Unused 0x12 Unused 24 U Unused 0x13 Unused 24 U Unused 0x14 Unused 24 U Unused 0x15 Unused 24 U Unused 0x16 Unused 24 U Unused 0x17 Unused 24 U Unused 0x18 Unused 24 U Unused 0x19 Unused 24 U Unused 0x1A Unused 24 U Unused 0x1B Unused 24 U Unused 0x1C Unused 24 U Unused 0x1D Unused 24 U Unused 0x1E Unused 24 U Unused 0x1F LOCK/CRC 24 R/W Security Register (password and CRC-16 on Register Map) |
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