MC68HC908BD48 Datasheet, PDF (181/290 Pages) Freescale Semiconductor, Inc – Microcontrollers

Multi-Master IIC Interface (MMIIC)
Registers
Table 14-2. MMIIC I/O Register Summary
Addr. Register Name
Bit 7
6
5
4
3
2
1
Bit 0
Read:
Multi-Master IIC
$004A Master Control Register Write:
(MIMCR)
Reset:
MMALIF
0
MMNAKIF
0
MMBB
0
MMAST
0
MMRW
0
MMBR2 MMBR1 MMBR0
0
0
0
$004B
Multi-Master IIC
Address Register
(MMADR)
Read:
Write:
Reset:
MMAD7
1
MMAD6
0
MMAD5
1
MMAD4
0
MMAD3
0
MMAD2
0
MMAD1 MMEXTAD
0
0
Read:
0
0
0
0
0
Multi-Master IIC
MMEN MMIEN
MMTXAK
$004C
Control Register Write:
(MMCR)
Reset: 0
0
0
0
0
0
0
0
$004D
Read: MMRXIF MMTXIF MMATCH MMSRW MMRXAK 0 MMTXBE MMRXBF
Multi-Master IIC
Status Register Write: 0
0
(MMSR)
Reset: 0
0
0
0
1
0
1
0
$004E
Read:
Multi-Master IIC
Data Transmit Register Write:
(MMDTR)
Reset:
MMTD7
1
MMTD6
1
MMTD5
1
MMTD4
1
MMTD3
1
MMTD2
1
MMTD1
1
MMTD0
1
$004F
Multi-Master IIC
Data Receive Register
(MMDRR)
Read:
Write:
Reset:
MMRD7
0
MMRD6
0
MMRD5
0
MMRD4
0
MMRD3
0
MMRD2
0
MMRD1
0
MMRD0
0
= Unimplemented
14.5 Registers
Six registers are associated with the Multi-master IIC module, they
outlined in the following sections.
MC68HC908BD48 — Rev. 1.0
MOTOROLA
Multi-Master IIC Interface (MMIIC)
Technical Data
181