Texas Instruments TMS320C642X - Manual (Page 23)

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3.1 I2C Own Address Register (ICOAR)
The I2C own address register (ICOAR) is used to specify its own slave address, which distinguishes it
from other slaves connected to the I2C-bus. If the 7-bit addressing mode is selected (XA = 0 in ICMDR),
only bits 6-0 are used; bits 9-7 are ignored.
The I2C own address register (ICOAR) is shown in Figure 13 and described in Table 5 .
Figure 13. I2C Own Address Register (ICOAR)
31 16
Reserved
R-0
15 10 9 0
Reserved OADDR
R-0 R/W-0
LEGEND: R/W = Read/Write; R = Read only; -n = value after reset
Table 5. I2C Own Address Register (ICOAR) Field Descriptions
Bit Field Value Description
31-10 Reserved 0 These reserved bit locations are always read as zeros. A value written to this field has no effect.
9-0 OADDR 0-3FFh Own slave address. Provides the slave address of the I2C.
In 7-bit addressing mode (XA = 0 in ICMDR): bits 6-0 provide the 7-bit slave address of the I2C. Bits 9-7
are ignored.
In 10-bit addressing mode (XA = 1 in ICMDR): bits 9-0 provide the 10-bit slave address of the I2C.
23 SPRUEN0D – March 2011 Inter-Integrated Circuit (I2C) Peripheral
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