CS47L35 datasheet(80/300 Pages) CIRRUS

80 / 300 page

DS1085F3

CS47L35

4.4 DSP Firmware Control

Figure 4-28. X-Data Memory Map

Note that the full CS47L35 register space is shown here as 16-bit width. (SPI/I2C/SLIMbus register access uses 32-bit

data width at 0x3000 and above.) However, the window base address fields (DSPn_EXT_[A/B/C/D]_PAGE) are

referenced to 16-bit width, and 16-bit register mapping is shown. Hence, the device register map is shown here entirely

as 16-bit width for ease of explanation.

The control registers associated with the register map window functions are described in Table 4-24.

24-bits

16-bits

DSP X-Memory Map

X Data Memory

16-bits

Internal DSP Control

X Data Memory

(shared DSP2/DSP3)

0x2000

Window A

Window B

Window C

Window D

0x0000

0x3000

0x0000

0xC000

0xD000

0xE000

0xF000

0xF400

0xF800

0xFC00

0xFFFF

Virtual DSP Ctrl

Audio Hub Register Map

Moveable

Window A

Moveable

Window B

Moveable

Window C

Moveable

Window D

Fixed codec

Page A Base Address

Page B Base Address

Page C Base Address

Page D Base Address

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