MC68HC908AP16CFA MOTOROLA [Motorola, Inc], MC68HC908AP16CFA Datasheet - Page 326

• Manufacturer Part Number: MC68HC908AP16CFA
• Description: Microcontrollers
• Manufacturer: MOTOROLA [Motorola, Inc]

Multi-Master IIC Interface (MMIIC)
16.5.9 Packet Error Code
16.6 MMIIC I/O Registers
16.6.1
Data Sheet
326
MMIIC
Address Register (MMADR)
Address:
The packet error code (PEC) for the MMIIC interface is in the form a
cyclic redundancy code (CRC). The PEC is generated by hardware for
every transmitted and received byte of data. The transmission of the
generated PEC is controlled by user software.
The CRC data register, MMCRCDR, contains the generated PEC byte,
with three other bits in the MMIIC control registers and status register
monitoring and controlling the PEC byte.
These I/O registers control and monitor MMIIC operation:
Reset:
Read:
Write:
Freescale Semiconductor, Inc.
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For More Information On This Product,
MMIIC address register (MMADR) — $0048
MMIIC control register 1 (MMCR1) — $0049
MMIIC control register 2 (MMCR2) — $004A
MMIIC status register (MMSR) — $004B
MMIIC data transmit register (MMDTR) — $004C
MMIIC data receive register (MMDRR) — $004D
MMIIC CRC data register (MMCRCDR) — $004E
MMIIC frequency divide register (MMFDR) — $004F
MMAD7
$0048
Bit 7
Figure 16-4. MMIIC Address Register (MMADR)
1
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MMAD6
6
0
MMAD5
5
1
MMAD4
4
0
MMAD3
MC68HC908AP Family — Rev. 2.5
3
0
MMAD2
2
0
MMAD1 MMEXTAD
1
0
MOTOROLA
Bit 0
0