TC1320_13 datasheet(8/16 Pages) MICROCHIP

8 / 16 page

TC1320

DS21386C-page 8

 2002-2012 Microchip Technology Inc.

FIGURE 4-1:

TIMING DIAGRAMS

4.6

Model

TABLE 4-2:

TC1320 COMMAND SET

(SMBus READ_BYTE AND

WRITE_BYTE)

TABLE 4-3:

CONFIGURATION REGISTER

(CONFIG), 8-BIT, READ/WRITE

tSU(START) tH(START)

tSU-DATA

tSU(STOP)

tIDLE

A = START Condition

B = MSB of Address Clocked into Slave

C = LSB of Address Clocked into Slave

D = R/W Bit Clocked into Slave

SMBus Write Timing Diagram

SMBUS Read Timing Diagram

E = Slave Pulls SDA Line Low

F = Acknowledge Bit Clocked into Master

G = MSB of Data Clocked into Master

H = LSB of Data Clocked into Master

ILOW IHIGH

I = Acknowledge Clock Pulse

J = STOP Condition

K = New START Condition

SCL

SDA

tSU(START) tH(START)

tSU-DATA

tH-DATA

tSU(STOP) tIDLE

A = START Condition

B = MSB of Address Clocked into Slave

C = LSB of Address Clocked into Slave

D = R/W Bit Clocked into Slave

E = Slave Pulls SDA Line Low

F = Acknowledge Bit Clocked into Master

G = MSB of Data Clocked into Slave

H = LSB of Data Clocked into Slave

I = Slave Pulls SDA Line Low

J = Acknowledge Clocked into Master

K = Acknowledge Clock Pulse

L = STOP Condition, Data Executed by Slave

M = New START Condition

ILOW IHIGH

SCL

SDA

Command Byte Description

Command

Code

Function

RWD

00h

Read/Write Data (DATA)

RWCR

01h

Read/Write Configuration

(CONFIG)

Configuration Register (CONFIG)

D[7] D[6]

D[5]

D[4]

D[3]

D[2]

D[1]

D[0]

Reserved

SHDN

Bit

POR

Function

Type

Operation

D[0]

Standby Switch

Read/

Write

1 = Standby

0 = Normal

D[7]-D[1]

Reserved;

Always returns

Zero when Read

N/A

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