Data Sheet

ISM14585-L35 Specification
DOC-DS-14585-201807-3.0
Confidential Inventek Systems
Page 36
10-bit Address Format
During 10-bit addressing, two bytes are transferred to set the 10-bit address. The
transfer of the first byte contains the following bit definition. The first five bits (bits 7:3)
notify the slaves that this is a 10-bit transfer followed by the next two bits (bits 2:1),
which set the slaves address bits 9:8, and the LSB bit (bit 0) is the R/W bit. The second
byte transferred sets bits 7:0 of the slave address. Figure 14 shows the 10-bit address
format, and below table defines the special purpose and reserved first byte addresses.
Figure 14 10-bit Address Format
The I2C Controller does not restrict you from using these reserved addresses. However,
if you use these reserved addresses, you may run into incompatibilities with other I2C
components.
Slave Address
R/W Bits
Description
0000 000
0
General Call Address. I2C Controller places the data in the receive
buffer and issues a General Call interrupt
0000 000
1
START byte. For more details, refer to “START BYTE Transfer
Protocol”0000
0000 001
X
CBUS address. I2C Controller ignores these accesses
0000 010
X
Reserved
0000 011
X
Reserved
0000 1XX
X
High-speed master code (for more information, refer to “Multiple
Master Arbitration”
1111 1XX
X
Reserved
1111 0XX
X
10-bit slave addressing