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I
2
C Module Registers
15-28
USART Peripheral Interface, I
2
C Mode
I2CSA, I
2
C Slave Address Register, 7-Bit Addressing Mode
15 14 13 12 11 10 9 8
0 0 0 0 0 0 0 0
r0 r0 r0 r0 r0 r0 r0 r0
76543210
0 I2CSAx
r0 rw−0 rw−0 rw−0 rw−0 rw−0 rw−0 rw−0
I2CSAx
Bits
15-0
I
2
C slave address. The I2CSA register contains the slave address of the
external device to be addressed by the MSP430. It is only used in master
mode. The I2CSA register is right-justified. Bit 6 is the MSB. Bits 15-7 are
always 0.
I2CSA, I
2
C Slave Address Register, 10-Bit Addressing Mode
15 14 13 12 11 10 9 8
0 0 0 0 0 0 I2CSAx
r0 r0 r0 r0 r0 r0 rw−0 rw−0
76543210
I2CSAx
rw−0 rw−0 rw−0 rw−0 rw−0 rw−0 rw−0 rw−0
I2CSAx
Bits
15-0
I
2
C slave address. The I2CSA register contains the slave address of the
external device to be addressed by the MSP430. It is only used in master
mode. The I2CSA register is right-justified. Bit 9 is the MSB. Bits 15-10 are
always 0.