STCN75 datasheet(23/35 Pages) STMICROELECTRONICS

Nome de Peças	STCN75

Descrição Electrónicos	Digital temperature sensor and thermal watchdog

PDF	35 Pages

Scroll/Zoom	100%

Fabricante Electrônico	STMICROELECTRONICS [STMicroelectronics]

Página de início	http://www.st.com

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23 / 35 page

STCN75

Functional description

23/35

3.6

WRITE mode

In this mode the master transmitter transmits to the STCN75 slave receiver. Bus protocol is

shown in Figure 11. Following the START condition and slave address, a logic '0' (R/W = 0)

is placed on the bus and indicates to the addressed device that word address will follow and

is to be written to the on-chip address pointer.

These modes are shown in the WRITE mode typical timing diagrams (see Figure 11, and

Figure 12, and Figure 13 on page 24).

Figure 11.

Typical pointer set followed by an immediate READ from the

configuration register

Figure 12.

Configuration register WRITE

AI12230

Repeat

Start

Master

ACK

STCN75

No ACK

STCN75

Stop

Cond.

Master

A2 A1 A0

D7 D6 D5 D4 D3 D2 D1 D0

R/W

Address Byte

Data Byte

Start

Master

Address Byte

Pointer Byte

ACK

STCN75

ACK

STCN75

A2 A1 A0 R/W

D1 D0

AI12231

Start

Master

Address Byte

Pointer Byte

ACK

STCN75

ACK

STCN75

ACK

STCN75

Stop

Cond.

Master

R/W

D1 D0

Configuration Byte

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