TEF6902A datasheet(13/106 Pages) NXP

номер детали	TEF6902A

подробное описание детали	Integrated car radio

PDF	106 Pages

Scroll/Zoom	100%

производитель	NXP [NXP Semiconductors]

домашняя страница	http://www.nxp.com

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13 / 106 page

TEF6902A_3

Product data sheet

Rev. 03 — 19 March 2008

13 of 106

NXP Semiconductors

TEF6902A

Integrated car radio

8.1 Read mode

Application restriction to use the read mode: Read transmissions should not be

stopped after read byte 4 (IFBW) since this will disturb level read-out, weak signal

processing and bandwidth control. Read transmission can be stopped after any of the

other read bytes 0 to 3, 5 or 6.

The read data is loaded into the I2C-bus output register at the ACK clock pulse preceding

the data byte.

Table 4.

Description of I2C-bus format

Code

Description

START condition

Slave address W

1100 0000b for pin ADDR grounded

1100 0010b for pin ADDR ﬂoating

Slave address R

1100 0001b for pin ADDR grounded

1100 0011b for pin ADDR ﬂoating

ACK-s

acknowledge generated by the slave

ACK-m

acknowledge generated by the master

not acknowledge generated by the master

MSA

mode and subaddress byte

Data

data byte

STOP condition

Table 5.

Read register overview

Data byte

Name

Reference

IFCOUNTER

Section 8.1.1

LEVEL

Section 8.1.2

USN/WAM

Section 8.1.3

MOD

Section 8.1.4

IFBW

Section 8.1.5

5ID

Section 8.1.6

TEMP

Section 8.1.7

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