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ADM1266ACPZ-R7 数据表(PDF) 57 Page - Analog Devices |
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ADM1266ACPZ-R7 数据表(HTML) 57 Page - Analog Devices |
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57 / 62 page ![]() Data Sheet ADM1266 Rev. A | Page 57 of 62 GPIO_STATUS This command block reads the status of the GPIOs. Table 98. Register 0xEA—GPIO_STATUS (for BLOCK R) Byte Byte Name R/W Description 0 Data length Block R Number of bytes of data for this block read, fixed to 2. [2:1] GPIO status Block R Input or output status of all the GPIOs. Refer to Table 99. Table 99. Two Bytes of Data for GPIO_STATUS Bits Bit Name R/W Description 13 Reserved R Reserved. 12 Reserved R Reserved. 11 GPIO7_STATUS R GPIO7 pin status. 10 GPIO6_STATUS R GPIO6 pin status. 9 GPIO5_STATUS R GPIO5 pin status. 8 GPIO4_STATUS R GPIO4 pin status. 7 GPIO9_STATUS R GPIO9 pin status. 6 GPIO8_STATUS R GPIO8 pin status. 5 Reserved R Reserved. 4 Reserved R Reserved. 3 Reserved R Reserved. 2 GPIO3_STATUS R GPIO3 pin status. 1 GPIO2_STATUS R GPIO2 pin status. 0 GPIO1_STATUS R GPIO1 pin status. DAC_CODE_CONFIGURATION This command block reads/writes the DAC code in an open-loop margining configuration. Table 100. Register 0xEB—DAC_CODE_CONFIGURATION (for Block WR) Byte Byte Name R/W Description 0 Parameter length Block W Parameter data length, fixed to 2. 1 DAC index parameter Block W 0000 = DAC1. 0001 = DAC2. 0010 = DAC3. 0011 = DAC4. 0100 = DAC5. 0101 = DAC6. 0110 = DAC7. 0111 = DAC8. 1000 = DAC9. 2 Data length Block W The length of DAC code configuration data to read back from the ADM1266. 0 Data length Block R The length of DAC code configuration data the ADM1266 returns. 1 Code parameter Block R Refer to Table 102. [17:2] DAC code Block R DAC code. Maximum = 16 DAC codes, N = 17 maximum. |
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