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LMX2324TM bảng dữ liệu(PDF) 6 Page - National Semiconductor (TI) |
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LMX2324TM bảng dữ liệu(HTML) 6 Page - National Semiconductor (TI) |
6 / 12 page 2.0 Programming Description 2.1 MICROWIRE INTERFACE The LMX2324 register set can be accessed through the MICROWIRE interface. A 18-bit shift register is used as a temporary reg- ister to indirectly program the on-chip registers. The shift register consists of a 17-bit DATA[16:0] field and a 1-bit address (ADDR) field as shown below. The address field is used to decode the internal register address. Data is clocked into the shift register in the direction from MSB to LSB, when the CLOCK signal goes high. On the rising edge of Load Enable (LE) signal, data stored in the shift register is loaded into the addressed latch. MSB LSB DATA[16:0] ADDR 17 1 0 2.1.1 Registers’ Address Map When Load Enable (LE) is transitioned high, data is transferred from the 18-bit shift register into the appropriate latch depending on the state of the ADDRESS bit. A multiplexing circuit decodes the address bit and writes the data field to the corresponding in- ternal register. REGISTER ADDRESSED ADDRESS BIT ADDR R Register 1 N Register 0 www.national.com 6 |
Số phần tương tự - LMX2324TM |
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Mô tả tương tự - LMX2324TM |
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