AS3715 datasheet(78/159 Pages) AMSOSRAM

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[v1-03] 2015-Aug-10

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AS3715 − Detailed Description – System Functions

Figure 81:

I²C Current Address Read

I²C Current Address Read: Shows the format of an I²C current address read access.

To keep the access time as small as possible, this format allows

a read access without the word address transfer in advance to

the data transfer. The bus is idle and the master issues a START

condition followed by the Device-Read address. Analogous to

Random Read, a single byte transfer is terminated with a

not-acknowledge after the 1st register byte. Analogous to

Sequential Read an unlimited number of data bytes can be

transferred, where the data bytes has to be responded with an

acknowledge from the master. For termination of the

transmission the master sends a not-acknowledge following

the last data byte and a subsequent STOP condition.

I²C Parameter

Figure 82:

I²C Characteristics

I²C Characteristics: Shows the key electrical parameter of the I²C interface.

The AS3715 is compatible to the NXP two wire specification

www.nxp.com/documents/user_manual/UM10204.pdf

Version 4.0 Feb 2012 for standard mode and fast mode (no fast

mode plus or high speed mode support).

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

VIL

SCL,SDA Low Level input

voltage

-0.3

0.4

VIH

SCL,SDA High Level

input voltage

1.4

VSUP_GPIO

VOH

High-Level Output

Voltage

at -2.0mA

0.8x

VSUP_GPIO_lv

VOL

Low-Level Output

Voltage

at 2.0mA

0.2x

VSUP_GPIO_lv

CLOAD

Capacitive Load

A data 1 A data 2 A

...

data n

RA++

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