LM3S3739 Luminary Micro, Inc, LM3S3739 Datasheet - Page 471

• Manufacturer Part Number: LM3S3739
• Description: Lm3s3739 Arm Microcontroller
• Manufacturer: Luminary Micro, Inc

16.4
Table 16-2. Inter-Integrated Circuit (I
June 02, 2008
I
I
2
2
Offset
C Master
0x00C
0x01C
C Slave
0x000
0x004
0x008
0x010
0x014
0x018
0x020
0x000
Name
I2CMSA
I2CMCS
I2CMDR
I2CMTPR
I2CMIMR
I2CMRIS
I2CMMIS
I2CMICR
I2CMCR
I2CSOAR
6.
7.
8.
9.
I
Table 16-2 on page 471 lists the I
addresses for the master and slave:
■
■
■
■
2
C Register Map
I
I
I
I
2
2
2
2
TPR = (System Clock / (2 * (SCL_LP + SCL_HP) * SCL_CLK)) - 1;
TPR = (20MHz / (2 * (6 + 4) * 100000)) - 1;
TPR = 9
Write the I2CMTPR register with the value of 0x0000.0009.
Specify the slave address of the master and that the next operation will be a Send by writing
the I2CMSA register with a value of 0x0000.0076. This sets the slave address to 0x3B.
Place data (byte) to be sent in the data register by writing the I2CMDR register with the desired
data.
Initiate a single byte send of the data from Master to Slave by writing the I2CMCS register with
a value of 0x0000.0007 (STOP, START, RUN).
Wait until the transmission completes by polling the I2CMCS register’s BUSBSY bit until it has
been cleared.
C Master 0: 0x4002.0000
C Slave 0: 0x4002.0800
C Master 1: 0x4002.1000
C Slave 1: 0x4002.1800
Type
R/W
R/W
R/W
R/W
R/W
R/W
R/W
WO
RO
RO
2
C) Interface Register Map
0x0000.0000
0x0000.0000
0x0000.0000
0x0000.0001
0x0000.0000
0x0000.0000
0x0000.0000
0x0000.0000
0x0000.0000
0x0000.0000
Reset
2
C registers. All addresses given are relative to the I
Preliminary
Description
I2C Master Slave Address
I2C Master Control/Status
I2C Master Data
I2C Master Timer Period
I2C Master Interrupt Mask
I2C Master Raw Interrupt Status
I2C Master Masked Interrupt Status
I2C Master Interrupt Clear
I2C Master Configuration
I2C Slave Own Address
LM3S3739 Microcontroller
2
C base
page
See
473
474
478
479
480
481
482
483
484
486
471