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TC1322EUA Datasheet(PDF) 10 Page - Microchip Technology |
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TC1322EUA Datasheet(HTML) 10 Page - Microchip Technology |
10 / 16 page TC1322 DS21388C-page 10 © 2005 Microchip Technology Inc. 4.6 Register Set and Programmer’s Model TABLE 4-2: TC1322 COMMAND SET (SMBus READ_BYTE AND WRITE_BYTE) TABLE 4-3: CONFIGURATION REGISTER (CONFIG), 8-BIT, READ/WRITE TABLE 4-4: DATA REGISTER (DATA), 12-BIT, READ/WRITE The DAC output voltage is a function of reference volt- age and the binary value of the contents of the register DATA. The transfer function is given by the expression: EQUATION 4-1: 4.7 Register Set Summary The TC1322’s register set is summarized in Table 4-5 below. All registers are 12-bits wide. TABLE 4-5: TC1322 REGISTER SET SUMMARY Command Byte Description Command Code Function RWD 00h Read/Write Data (DATA) RWCR 01h Read/Write Configuration (CONFIG) Configuration Register (CONFIG) D[7] D[6] D[5] D[4] D[3] D[2] D[1] D[0] Reserved SHDN Bit POR Function Type Operation D[0] 0 Standby Switch Read/ Write 1 = Standby 0 = Normal D[7]-D[1] 0 Reserved; Always returns Zero when Read N/A N/A Data Register (DATA) for 1st Byte D[11] D[0] D[9] D[8] D[7] D[6] D[5] D[4] MSB X X X X X X LSB Data Register (DATA) for 2nd Byte D[3] D[2] D[1] D[0] X X X X X X X LSB X X X X Name Description POR State Read Write Data Data Register (2-Byte Format) 000000000000b X X Config CONFIG Register 0000 0000b X X VOUT = VREF x DATA 4096 ⎡ ⎣ ⎤ ⎦ |
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