1°C Triple Temperature Sensor with Resistance Error Correction

Datasheet

Revision 1.2 (04-15-05)

8

SMSC EMC1023

DATASHEET

3.4

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 can be used for consecutive

reads of the same register as shown below:

3.5

SMBus Addresses

The EMC1023 may be ordered with one of four 7-bit slave addresses as shown in Order Numbers.

Attempting to communicate with the EMC1023 SMBus interface with an invalid slave address or invalid

protocol results in no response from the device and does not affect its register contents. The EMC1023

supports stretching of the SMCLK signal by other devices on the SMBus but will not perform this

operation itself.

3.6

SMBus Timeout

The EMC1023 includes an SMBus timeout feature. Following a 25 ms period of inactivity on the

SMBus, the device will timeout and reset the SMBus interface.

Table 3.4 SMBus Receive Byte Protocol

FIELD:

START

SLAVE ADDR

RD

ACK

REG. DATA

NACK

STOP

Bits:

17

1

1

8

1

1