wm8593seft-v Wolfson Microelectronics plc, wm8593seft-v Datasheet - Page 21

• Manufacturer Part Number: wm8593seft-v
• Description: 24-bit 192khz 2vrms Multi-channel Codec
• Manufacturer: Wolfson Microelectronics plc

Production Data
3-WIRE (SPI COMPATIBLE) SERIAL CONTROL INTERFACE MODE
w
REGISTER WRITE
SDIN is used for the program data, SCLK is used to clock in the program data and /CS is use to
latch in the program data. SDIN is sampled on the rising edge of SCLK. The 3-wire interface write
protocol is shown in Figure 11.
Figure 11 3-Wire Serial Interface Write Protocol
REGISTER READ-BACK
The read-only status registers can be read back via the SDOUT pin. Read Back is enabled when the
R/W bit is high. The data can then be read by writing to the appropriate register address, to which the
device will respond with data.
Figure 12 3-Wire Serial Interface Readback Protocol
REGISTER RESET
Any write to register R0 (00h) will reset the WM8593. All register bits are reset to their default values.
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W indicates write operation.
A[6:0] is the register index.
B[15:0] is the data to be written to the register indexed.
/CS is edge sensitive – the data is latched on the rising edge of /CS.
PD Rev 4.0 April 2008
WM8593
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