TC1321 datasheet(9/16 Pages) MICROCHIP

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DS21387B-page 9

TC1321

FIGURE 4-1:

TIMING DIAGRAMS

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

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