CS47L85 datasheet(132/370 Pages) CIRRUS

132 / 370 page

CS47L85

132

Rev 4.3

BIT

LABEL

DEFAULT

DESCRIPTION

DSP1 Base Address = R1048064 (0FFE00h)

DSP2 Base Address = R1572352 (17FE00h)

DSP3 Base Address = R2096640 (1FFE00h)

DSP4 Base Address = R2620928 (27FE00h)

DSP5 Base Address = R3145216 (2FFE00h)

DSP6 Base Address = R3669504 (37FE00h)

DSP7 Base Address = R4193792 (3FFE00h)

base address

DSPn_Config_1

18:16

DSPn_CLK_SEL [2:0]

000

DSPn Clock Frequency Select

000=5.5MHz to 9.375MHz

001=9.375MHz to 18.75MHz

010=18.75MHz to 37.5MHz

011=37.5MHz to 75MHz

100=75MHz to 150MHz

All other codes are Reserved

[DSP6, DSP7]

– valid codes are 000

to 011 only.

Note that, because DSPCLK could be

any frequency (within the valid

ranges), it is not possible to quote

exact frequencies in this register

definition.

The DSPn Clock must be less than or

equal to the DSPCLK frequency. The

exact frequency will be derived as

DSPCLK divided by 1, 2, 4, 8, or 16.

DSPn_MEM_ENA

DSPn Memory Control

0 = Disabled

1 = Enabled

The DSPn memory contents are lost

when DSPn_MEM_ENA=0. Note that

this bit is not affected by Software

Reset; it will remain in its previous

condition.

[DSP6 only]

– This bit has no

function; DSP6 memory is enabled at

all times.

DSPn_CORE_ENA

DSPn Enable

Controls the DSPn firmware execution

0 = Disabled

1 = Enabled

DSPn_START

DSPn Start

Write ‘1’ to Start DSPn firmware

execution

base address +06h

DSPn_Status_2

31:16

DSPn_DUALMEM_COLLISI

ON_ADDR [15:0]

0000h

DSPn Dual Memory Collision Address

In the event of a DSPn memory

access collision, this field will report

the address at which the collision

occurred.

The address is defined relative to the

base address of the shared data

memory. The LSB represents one 24-

bit DSP memory word.

CS47L85 Datasheet(PDF) 132 Page - Cirrus Logic

CS47L85 Datasheet(HTML) 132 Page - Cirrus Logic

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Download

Link URL