ST STM8S

RM0016 Inter-integrated circuit (I
2
C) interface
Doc ID 14587 Rev 8 297/449
21.7.4 Own address register LSB (I2C_OARL)
Address offset: 0x03
Reset value: 0x00
21.7.5 Own address register MSB (I2C_OARH)
Address offset: 0x04
Reset value: 0x00
76543210
ADD[7:1] ADD0
rw rw
Bits 7:1 ADD[7:1] Interface address
bits 7:1 of address
Bit 0 ADD[0] Interface address
7-bit addressing mode: don’t care
10-bit addressing mode: bit 0 of address
76543210
ADDMODE ADDCONF
Reserved
ADD[9:8]
Reserved
rw rw rw
Bit 7 ADDMODE Addressing mode (Slave mode)
0: 7-bit slave address (10-bit address not acknowledged)
1: 10-bit slave address (7-bit address not acknowledged)
Bit 6 ADDCONF Address mode configuration
This bit must set by software (must always be written as ‘1’).
Bits 5:3 Reserved
Bits 2:1 ADD[9:8] Interface address
10-bit addressing mode: bits 9:8 of address.
Bit 0 Reserved