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I2C registers
550
NS9750 Hardware Reference
Master Address register
Address: 9050 0004
If using 7-bit addressing, the master device address field uses only bits D07:01;
otherwise, all 10 bits are used.
Register bit assignment
Bits Access Mnemonic Reset Description
D10:01 R/W MDA 00
hex
Master device address
Used for selecting a slave.
Represents bits 6:0 of the device address if using 7-
bit address. D10:08 are not used.
Represents bits 9:0 of device address if using 10-bit
address.
D00 R/W MAM 00
hex
Master addressing mode
0 7 bit address mode
1 10 bit address mode
Table 339: Master Address register (7-bit and 10-bit)
13121110987654321015 14
31 29 28 27 26 25 24 23 22 21 20 19 18 17 1630
Reserved
Master device address
Mstr
addr
mode
Reserved