WM8580AGEFTV datasheet(21/106 Pages) WOLFSON

tên linh kiện	WM8580AGEFTV

Giải thích chi tiết về linh kiện	Multichannel CODEC with S/PDIF Transceiver

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Production Data

WM8580A

PD, Rev 4.9, November 2013

The WM8580A allows readback of certain registers in 2-wire mode, with data output on the SDO pin.

As in 3-wire mode, there are two methods of reading back data: continuous and non-continuous

readback. Continuous readback is set by writing to the Readback Control register (see Table 9) to set

READEN and CONTREAD to 1, and to set the READMUX bits to select the register to be read back.

The status of this register can then be readback using the protocol shown in Figure 10.

Figure 10 2-Wire Continuous Readback

If CONTREAD is set to zero, the user can read back directly from the register by writing to the register

address, to which the device will respond with data. The protocol for this system is shown in Figure

11.

Figure 11 2-Wire Non-Continuous Readback

SOFTWARE REGISTER RESET

Writing to register R53 will cause a register reset, resetting all register bits to their default values.

Table 11 Software Reset

ADDRESS

BIT

LABEL

DEFAULT

DESCRIPTION

R53

RESET

35h

8:0

RESET

n/a

Writing any data value to this register

will apply a reset to the device

registers.

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