Chapter 13 Inter-Integrated Circuit (MC9S12XDP512) Block Description
MC9S12XDP512 Data Sheet, Rev. 2.11
596 Freescale Semiconductor
13.3.2 Register Descriptions
This section consists of register descriptions in address order. Each description includes a standard register
diagram with an associated figure number. Details of register bit and field function follow the register
diagrams, in bit order.

13.3.2.1 IIC Address Register (IBAD)

Read and write anytime

This register contains the address the IIC bus will respond to when addressed as a slave; note that it is not

the address sent on the bus during the address transfer.

Register
Name Bit 7 654321Bit 0
0x0000
IBAD
RADR7 ADR6 ADR5 ADR4 ADR3 ADR2 ADR1 0
W
0x0001
IBFD
RIBC7 IBC6 IBC5 IBC4 IBC3 IBC2 IBC1 IBC0
W
0x0002
IBCR
RIBEN IBIE MS/SL Tx/Rx TXAK 00
IBSWAI
WRSTA
0x0003
IBSR
R TCF IAAS IBB IBAL 0SRW
IBIF RXAK
W
0x0004
IBDR
RD7 D6 D5 D4 D3 D2 D1 D0
W
= Unimplemented or Reserved
Figure 13-2. IIC Register Summary
Offset Module Base +0x0000
76543210
R
ADR7 ADR6 ADR5 ADR4 ADR3 ADR2 ADR1
0
W
Reset 00000000
= Unimplemented or Reserved
Figure 13-3. IIC Bus Address Register (IBAD)