slave address (SA) W
ACK
7
1
1
8
(b) 7-bit address F/S mode with repeated start
Master to slave
Slave to master
S
register address (RA) ACK
1
DATA
8
ACK
P
1
1
1
slave address (SA) W
ACK
7
1
1
8
S
ACK
1
DATA
8
ACK
P
1
1
1
Frame 1
Frame 2
slave address (SA) W
ACK
7
1
1
8
S
register address (RA) ACK
1
DATA
8
ACK
1
1
W
ACK
7
1
1
8
Sr
register address (RA) ACK
1
DATA
8
ACK
P
1
1
1
Frame 1
Frame 2
register address (RA)
slave address (SA)
W: Write = 0
S: Start condition
Sr: Repeated start condition
P: Stop condition
(a) 7-bit slave address F/S mode without repeated start
i2c-017
Public Version
HS I
2
C Environment
www.ti.com
NOTE:
The I2C4 clock frequency in HS mode is equal to the SYS_CLK clock frequency divided by
15.
17.2.3.3 HS I
2
C Typical Connections Protocol and Data Format for I2C4
17.2.3.3.1 HS I
2
C Serial Data Format for I2C4
The serial data format is the same as described in
, HS I
2
C Serial Data Format.
17.2.3.3.2 HS I
2
C Data Validity for I2C4
The data validity is the same as described in
, HS I
2
C Data Validity.
17.2.3.3.3 HS I
2
C Start and Stop Conditions for I2C4
The S and P conditions are the same as described in
, HS I
2
C Start and Stop
Conditions.
17.2.3.3.4 HS I
2
C Addressing for I2C4
The master transmitter HS I
2
C controller I2C4 supports only the 7-bit addressing mode. For each frame,
the master writes the 8-bit value (DATA) in the register specified by the 8-bit register address (RA) of the
slave addressed by the slave address (SA).
17.2.3.3.4.1 HS I
2
C Data Transfer Format in F/S Mode for I2C4
shows the HS I
2
C data transfer format in F/S mode for I2C4.
Figure 17-17. HS I
2
C Data Transfer Format in F/S Mode for I2C4
17.2.3.3.4.2 HS I
2
C Data Transfer Format in HS Mode for I2C4
shows the HS I
2
C data transfer format in HS mode for I2C4.
2780
SWPU177N – December 2009 – Revised November 2010
Multimaster High-Speed I
2
C Controller
Copyright © 2009–2010, Texas Instruments Incorporated
Содержание OMAP36 Series
Страница 174: ...174 List of Tables SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...
Страница 692: ...692 MPU Subsystem SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...
Страница 1084: ...1084 IVA2 2 Subsystem SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...
Страница 1990: ...1990 2D 3D Graphics Accelerator SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...
Страница 2334: ...2334 Memory Subsystem SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...
Страница 2700: ...2700 Memory Management Units SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...
Страница 2868: ...2868 HDQ 1 Wire SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...
Страница 2974: ...2974 UART IrDA CIR SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...
Страница 3054: ...3054 Multichannel SPI SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...
Страница 3462: ...3462 MMC SD SDIO Card Interface SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...
Страница 3508: ...3508 General Purpose Interface SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...
Страница 3584: ...3584 Initialization SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...
Страница 3648: ...3648 Debug and Emulation SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...