DS64EV400_15 Datasheet, PDF(8/22 Page) Texas Instruments

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DS64EV400_15 Datasheet, PDF (8/22 Pages) Texas Instruments – Programmable Quad Equalizer

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DS64EV400

SNLS281H â AUGUST 2007 â REVISED APRIL 2013

www.ti.com

9. The Device drives the 8-bit data value (register contents).

10. The Host drives a NACK bit â1âindicating end of the READ transfer.

11. The Host drives a STOP condition.

12. The Host de-selects the device by driving its SMBus CS signal Low.

The READ transaction is completed, the bus goes IDLE and communication with other SMBus devices may now

occur.

See Table 1 for more information.

Table 1. SMBus Register Address

Name

Address

Default

Type

(1)

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2 Bit 1

Bit 0

Status

Enable/Boost

(CH 0, 1)

0x00

0x01

0x02

0x03

Enable/Boost 0x04

(CH 2, 3)

Signal Detect 0x05

Signal Detect 0x06

SMBus

Control

0x07

Output Level 0x08

0x00

0x44

0x00

0x78

RO ID Revision

SD3

SD2

SD1 SD0

RO EN1

Boost 1

EN0

Boost 0

RO EN3

Boost 3

EN2

Boost 2

RW EN1 Output Boost Control for CH1

0:Enable 000 (Min Boost)

1:Disable 001

010

011

100 (Default)

101

110

111 (Max Boost)

EN0

Output

0:Enable

1:Disable

Boost Control for CH0

000 (Min Boost)

001

010

011

100 (Default)

101

110

111 (Max Boost)

RW EN3 Output Boost Control for CH3

0:Enable 000 (Min Boost)

1:Disable 001

010

011

100 (Default)

101

110

111 (Max Boost)

EN2

Output

0:Enable

1:Disable

Boost Control for CH2

000 (Min Boost)

001

010

011

100 (Default)

101

110

111 (Max Boost)

RW SD3 ON Threshold

Select

00: 70 mV (Default)

01: 55 mV

10: 90 mV

11: 75 mV

SD2 ON Threshold

Select

00: 70 mV (Default)

01: 55 mV

10: 90 mV

11: 75 mV

SD1 ON Threshold

Select

00: 70 mV (Default)

01: 55 mV

10: 90 mV

11: 75 mV

SD0 ON Threshold

Select

00: 70 mV (Default)

01: 55 mV

10: 90 mV

11: 75 mV

RW SD3 OFF Threshold

Select

00: 40 mV (Default)

01: 30 mV

10: 55 mV

11: 45 mV

SD2 OFF Threshold

Select

00: 40 mV (Default)

01: 30 mV

10: 55 mV

11: 45 mV

SD1 OFF Threshold

Select

00: 40 mV (Default)

01: 30 mV

10: 55 mV

11: 45 mV

SD0 OFF Threshold

Select

00: 40 mV (Default)

01: 30 mV

10: 55 mV

11: 45 mV

RW Reserved

SMBus

Enable

Control

0: Disable

1: Enable

RW Reserved

Output Level:

00: 400 mVP-P

01: 540 mVP-P

10: 620 mVP-

P(Default)

11: 760 mVP-P

Reserved

(1) Note: RO = Read Only, RW = Read/Write

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