TC1321 Datasheet, PDF (9/16 Pages) Microchip Technology – 10-Bit Digital-to-Analog Converter with Two-Wire Interface

TC1321
FIGURE 4-1:
TIMING DIAGRAMS
SMBus Write Timing Diagram
A
B
C
D
EF
G
I_LOW I_HIGH
SCL
SDA
H
I
J
K
t_SU(START) t_H(START)
t_SU-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
t_SU(STOP)
t_IDLE
SMBus Read Timing Diagram
A
B
C
D
EF
G
I_LOW I_HIGH
SCL
SDA
H
IJ
K
L
M
t_SU(START) t_H(START)
t_SU-DATA
t_H-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 Slave
H = LSB of Data Clocked into Slave
I = Slave Pulls SDA Line Low
t_SU(STOP) t_IDLE
J = Acknowledge Clocked into Master
K = Acknowledge Clock Pulse
L = STOP Condition, Data Executed by Slave
M = New START Condition
© 2002 Microchip Technology Inc.
DS21387B-page 9