TC1320(2002) View Datasheet(PDF) - Microchip Technology

Part Name

Description

Manufacturer

TC1320
(Rev.:2002)

8-Bit Digital-to-Analog Converter with Two-Wire Interface

Microchip Technology 

TC1320

FIGURE 4-1:

TIMING DIAGRAMS

SMBus Write Timing Diagram

A

B

C

D

EF

G

ILOW IHIGH

SCL

SDA

H

I

J

K

tSU(START) tH(START)

tSU-DATA

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 Master

H = LSB of Data Clocked into Master

I = Acknowledge Clock Pulse

J = STOP Condition

K = New START Condition

tSU(STOP) tIDLE

SMBUS Read Timing Diagram

A

B

C

D

EF

G

ILOW IHIGH

SCL

SDA

H

IJ

K

LM

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

4.6 Register Set and Programmer’s

Model

TABLE 4-2:

TC1320 COMMAND SET

(SMBus READ_BYTE AND

WRITE_BYTE)

Command Byte Description

Command

RWD

RWCR

Code

00h

01h

Function

Read/Write Data (DATA)

Read/Write Configuration

(CONFIG)

TABLE 4-3: CONFIGURATION REGISTER

(CONFIG), 8-BIT, READ/WRITE

Configuration Register (CONFIG)

D[7] D[6] D[5] D[4] D[3] D[2] D[1] D[0]

Bit

D[0]

D[7]-D[1]

Reserved

SHDN

POR Function

Type Operation

0 Standby Switch Read/ 1 = Standby

Write 0 = Normal

0 Reserved;

N/A

N/A

Always returns

Zero when Read

DS21386B-page 8

© 2002 Microchip Technology Inc.

Share Link: