Datasheet

Rev. 3.00, 03/04, page 452 of 830
Table 15.4 Flags and Transfer States (Master Mode)
MST TRS BBSY ESTP STOP IRTR AASX AL AAS ADZ ACKB ICDRF ICDRE State
1 1 0 0 0 0 0↓ 0 0↓ 0↓ 0  0 Idle state (flag
clearing
required)
1 1 1↑ 0 0 1↑ 0 0 0 0 0  1↑ Start condition
detected
1  1 0 0  0 0 0 0    Wait state
1 1 1 0 0  0 0 0 0 1↑   Transmission
end (ACKE=1
and ACKB=1)
1 1 1 0 0 1↑ 0 0 0 0 0  1↑ Transmission
end with
ICDRE=0
1 1 1 0 0  0 0 0 0 0  0↓ ICDR write with
the above state
1 1 1 0 0  0 0 0 0 0  1 Transmission
end with
ICDRE=1
1 1 1 0 0  0 0 0 0 0  0↓ ICDR write with
the above state
or after start
condition
detected
1 1 1 0 0 1↑ 0 0 0 0 0  1↑ Automatic data
transfer from
ICDRT to ICDRS
with the above
state
1 0 1 0 0 1↑ 0 0 0 0  1↑  Reception end
with ICDRF=0
1 0 1 0 0  0 0 0 0  0↓  ICDR read with
the above state
1 0 1 0 0  0 0 0 0  1  Reception end
with ICDRF=1
1 0 1 0 0  0 0 0 0  0↓  ICDR read with
the above state
1 0 1 0 0 1↑ 0 0 0 0  1↑  Automatic data
transfer from
ICDRS to
ICDRR with the
above state
0↓ 0↓ 1 0 0  0 1↑ 0 0    Arbitration lost
1  0↓ 0 0  0 0 0 0   0↓ Stop condition
detected
[Legend]
0: 0-state retained 1: 1-state retained : Previous state retained
0
↓: Cleared to 0 1↑: Set to 1