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WM9093ECS/R データシート(PDF) 70 Page - Wolfson Microelectronics plc |
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WM9093ECS/R データシート(HTML) 70 Page - Wolfson Microelectronics plc |
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70 / 84 page  WM9093 Production Data w PD, March 2012, Rev 4.2 70 REGISTER ADDRESS BIT LABEL DEFAULT DESCRIPTION REFER TO step). 11:8 WSEQ_DELAY [3:0] 0000 Time delay after executing this step. Total time per step (including execution) = 62.5us × (2^WSEQ_DELAY + 8) 7:0 WSEQ_DATA[ 7:0] 0000_0000 Data to be written in this sequence step. When the data width is less than 8 bits, then one or more of the MSBs of WSEQ_DATA are ignored. It is recommended that unused bits be set to 0. Register 48h Write Sequencer 2 REGISTER ADDRESS BIT LABEL DEFAULT DESCRIPTION REFER TO R73 (49h) Write Sequencer 3 9 WSEQ_ABOR T 0 Writing a 1 to this bit aborts the current sequence and returns control of the device back to the serial control interface. 8 WSEQ_START 0 Writing a 1 to this bit starts the write sequencer at the memory location indicated by the WSEQ_START_INDEX field. The sequence continues until it reaches an “End of sequence” flag. At the end of the sequence, this bit will be reset by the Write Sequencer. 5:0 WSEQ_START _INDEX[5:0] 00_0000 Sequence Start Index. This is the memory location of the first command in the selected sequence. 0 to 15 = RAM addresses 16 to 58 = ROM addresses 59 to 63 = Reserved Register 49h Write Sequencer 3 REGISTER ADDRESS BIT LABEL DEFAULT DESCRIPTION REFER TO R74 (4Ah) Write Sequencer 4 0 WSEQ_BUSY 0 Sequencer Busy flag (Read Only). 0 = Sequencer idle 1 = Sequencer busy Note: it is not possible to write to control registers via the control interface while the Sequencer is Busy. Register 4Ah Write Sequencer 4 REGISTER ADDRESS BIT LABEL DEFAULT DESCRIPTION REFER TO R75 (4Bh) Write Sequencer 5 5:0 WSEQ_CURR ENT_INDEX[5: 0] 00_0000 Sequence Current Index. This is the location of the most recently accessed command in the write sequencer memory. Register 4Bh Write Sequencer 5 REGISTER ADDRESS BIT LABEL DEFAULT DESCRIPTION REFER TO R76 (4Ch) Charge Pump 1 15 CP_ENA 0 Charge Pump Control 0 = Disabled 1 = Enabled Register 4Ch Charge Pump 1 |
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