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ST5090ADTR Scheda tecnica(PDF) 8 Page - STMicroelectronics |
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ST5090ADTR Scheda tecnica(HTML) 8 Page - STMicroelectronics |
8 / 29 page II PROGRAMMABLE FUNCTIONS For both formats of Digital Interface, programma- ble functions are configured by writing to a num- ber of registers using a 2-byte write cycle. Most of these registers can also be read-back for verification. Byte one is always register address, while byte two is Data. Table 1 lists the register set and their respective adresses. Table 1: Programmable Register Intructions Function Address byte Data byte 7654 3210 Single byte Power up/down P X X X X X 0 X none Write CR0 P 000001 X see CR0 TABLE 2 Read-back CR0 P 0 0 0 0 1 1 X see CR0 Write CR1 P 000101 X see CR1 TABLE 3 Read-back CR1 P 0 0 0 1 1 1 X see CR1 Write Data to receive path P 001001 X see CR2 TABLE 4 Read data from DR P 001011 X see CR2 Write Data to DX P 001101 X see CR3 TABLE 5 Write CR4 P 010001 X see CR4 TABLE 6 Read-back CR4 P 0 1 0 0 1 1 X see CR4 Write CR5 P 010101 X see CR5 TABLE 7 Read-back CR5 P 0 1 0 1 1 1 X see CR5 Write CR6 P 011001 X see CR6 TABLE 8 Read-back CR6 P 0 1 1 0 1 1 X see CR6 Write CR7 P 011101 X see CR7 TABLE 9 Read-back CR7 P 0 1 1 1 1 1 X see CR7 Write CR8 P 100001 X see CR8 TABLE 10 Read-back CR8 P 1 0 0 0 1 1 X see CR8 Write CR9 P 100101 X see CR9 TABLE 11 Read-back CR9 P 1 0 0 1 1 1 X see CR9 Write CR10 P 101001 X see CR10 TABLE 12 Read-back CR10 P 1 0 1 0 1 1 X see CR10 Write CR11 P 101101 X see CR11 TABLE 13 Read-back CR11 P 1 0 1 1 1 1 X see CR11 Write Test Register CR14 P 111001 X reserved NOTE 1: bit 7 of the address byte and data byte is always the first bit clocked into or out from: CI and CO pins when MICROWIRE serial port is enabled. X = reserved: write 0 NOTE 2: ”P” bit is Power up/down Control bit. P = 1 Means Power Down. Bit 1 indicates, if set, the presence of a second byte. NOTE 3: Bit 2 is write/read select bit. NOTE 4: Registers CR12, CR13, and CR15 are not accessible. ST5090 8/29 |
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