EMC1402(2007) Ver la hoja de datos (PDF) - SMSC -> Microchip

Número de pieza

componentes Descripción

Lista de partido

EMC1402
(Rev.:2007)

1°C Temperature Sensor with Beta Compensation

SMSC -> Microchip 

4.3

Read Byte

1°C Temperature Sensor with Beta Compensation

Datasheet

The Read Byte protocol is used to read one byte of data from the registers as shown in Table 4.3.

Table 4.3 Read Byte Protocol

START

1

SLAVE

WR ACK

ADDRESS

7

11

REGISTER

ADDRESS

8

ACK

1

START

SLAVE

RD ACK

ADDRESS

1

7

11

REGISTER

DATA

8

NACK STOP

1

1

4.4

Send Byte

The Send Byte protocol is used to set the internal address register pointer to the correct address

location. No data is transferred during the Send Byte protocol as shown in Table 4.4.

START

1

SLAVE

ADDRESS

7

Table 4.4 Send Byte Protocol

REGISTER

WR

ACK

ADDRESS

1

1

8

ACK

1

STOP

1

4.5

Receive Byte

The Receive Byte protocol is used to read data from a register when the internal register address

pointer is known to be at the right location (e.g. set via Send Byte). This is used for consecutive reads

of the same register as shown in Table 4.5.

START

1

SLAVE

ADDRESS

7

Table 4.5 Receive Byte Protocol

RD

ACK

REGISTER DATA

NACK

1

1

8

1

STOP

1

4.6

Alert Response Address

The ALERT output can be used as a processor interrupt or as an SMBus Alert.

When it detects that the ALERT pin is asserted, the host will send the Alert Response Address (ARA)

to the general address of 000_1100b. All devices with active interrupts will respond with their client

address as shown in Table 4.6.

START

1

Table 4.6 Alert Response Address Protocol

ALERT

RESPONSE

ADDRESS

7

DEVICE

RD

ACK

ADDRESS

1

1

8

NACK

1

STOP

1

Revision 1.16 (03-15-07)

14

DATASHEET

SMSC EMC1402

Share Link: