9SQL4954CNLGI8 datasheet(20/30 Pages) RENESAS

20 / 30 page

February 19, 2020

9SQL4952/9SQL4954/9SQL4958 Datasheet

1 See BCLK Low-Power HCSL Outputs table for slew rates.

1 The disabled state depends on Byte11[1:0]. '00' = Low, '01'= HiZ, '10' = Low, '11' = High.

Byte 4 is Reserved

Table 23. Byte 2: BCLK Slew Selection Register

Byte 2

Bit7

Bit6

Bit5

Bit4

Bit3

Bit2

Bit1

Bit0

Control

Function

Select fast or

slow slew rate

Select fast or

slow slew rate

Select fast or

slow slew rate

Select fast or

slow slew rate

Select fast or

slow slew rate

Select fast or

slow slew rate

Select fast or

slow slew rate

Select fast or

slow slew rate

Type

Slow Slew Rate

Fast Setting

9SQL4958

Name

BCLK7_slew

BCLK6_slew

BCLK5_slew

BCLK4_slew

BCLK3_slew

BCLK2_slew

BCLK1_slew

BCLK0_slew

9SQL4958

Default

111

1111

9SQL4954

Name

Reserved

BCLK3_slew

BCLK2_slew

BCLK1_slew

BCLK0_slew

9SQL4954

Default

1111

9SQL4952

Name

Reserved

BCLK1_slew

BCLK0_slew

Reserved

9SQL4952

Default

xxx

Table 24. Byte 3: REF Slew Rate Control Register

Byte 3

Bit7

Bit6

Bit5

Bit4

Bit3

Bit2

Bit1

Bit0

Control

Function

Slew Rate Control

Wake-on-Lan

Enable for REF

REF Output

Enable

Reserved

Type

00 = Slowest

10 = Fast

REF disabled

in Power Down

Disabled1

01 = Slow

11 = Fastest

REF runs in

Power Down

Enabled

Name

REF Slew Rate [1:0]

REF Power

Down Function

REF OE

Default

101

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