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PICkit™ Serial Analyzer Firmware

© 2007 Microchip Technology Inc. DS51647A-page 85

TABLE 9-18: I

2

CM ‘CMD’ TAG BYTES

An example of a data stream in the script buffer that would direct the COMM back to

communicate in I

2

C to the unit.

Under test is as follows:

TAG/CCMD LEN Name Description

0x80 1 I

2

CM_INIT Initialize master

0TAG

0x81 1 I

2

CM_START Issue I

2

C™ Start

0TAG

0x82 1 I

2

CM_STOP Issue I

2

C™ Stop

0TAG

0x83 1 I

2

CM_RESTART Issue I

2

C™ Restart

0TAG

0x84 N+2 I

2

CM_WRITE_BYTES Write bytes

0TAG

1 byte count (N)

2 data byte

N+1 data byte

0x85 2 I

2

CM_READ_BYTES Read bytes – ACK all bytes

0TAG

1 byte count (N)

0x86 1 I

2

CM_READ_BLOCK Read block – ACK all bytes

0TAG

0x87 2 I

2

CM_BIT_RATE Set I

2

C™ bit rate

0TAG

1bit rate

0x88 1 I

2

CM_RESET Reset MSSP module

0TAG

0x89 2 I

2

CM_READ_BYTES_NLB Read bytes – NACK last byte

0TAG

1 byte count (N)

0x8A 1 I

2

CM_READ_BLOCK_NLB Read block – NACK last byte

0TAG

0x81 I

2

CM_START

0x84 I

2

CM_WRITE_BYTES

0x02 Number of bytes

0xA8 I

2

C™ address for writing

0x01 I

2

C™ command code

0x83 I

2

CM_RESTART

0x84 I

2

CM_WRITE_BYTES

0x01 Number of bytes

0xA9 I

2

C™ address for reading

0x89 I

2

CM_READ_BYTES_NLB

0x01 Number of bytes

0x82 I

2

CM_STOP