LM3S9B81 Datasheet, PDF (1098/1155 Pages) Texas Instruments – Stellaris® LM3S9B81 Microcontroller

Electrical Characteristics
Figure 25-20. SSI Timing for SPI Frame Format (FRF=00), with SPH=1
SSIClk
(SPO=0)
SSIClk
(SPO=1)
SSITx
(master)
SSIRx
(slave)
S4
S6 S7
MSB
S5
S8 S9
MSB
S1
S2
S3
LSB
LSB
SSIFss
25.2.10 Inter-Integrated Circuit (I²C) Interface
Figure 25-21. I²C Timing
I2
I6
I5
I2CSCL
I1
I4
I7
I8 I3
I9
I2CSDA
25.2.11 Inter-Integrated Circuit Sound (I²S) Interface
Table 25-28. I²S Master Clock (Receive and Transmit)
Parameter No.
M1
M2
M3
M4
M5
M6
Parameter
t_{MCLK_PER}
t_MCLKRF
t_{MCLK_HIGH}
t_{MCLK_LOW}
t_MDC
t_MJITTER
Parameter Name
Cycle time
Rise/fall time
High time
Low time
Duty cycle
Jitter
Min
Nom
Max
20.3
-
-
See Table 25-19 on page 1090.
10
-
-
10
-
-
48
-
52
-
-
2.5
Table 25-29. I²S Slave Clock (Receive and Transmit)
Parameter No.
M7
M8
Parameter
t_{SCLK_PER}
t_{SCLK_HIGH}
Parameter Name
Cycle time
High time
Min
Nom
Max
80
-
-
40
-
-
Unit
ns
ns
ns
ns
%
ns
Unit
ns
ns
1098
Texas Instruments-Advance Information
June 29, 2010