Datasheet

Section 15 I
2
C Bus Interface (IIC)
Rev. 3.00 Sep. 28, 2009 Page 347 of 710
REJ09B0384-0300
Table 15.5 Flags and Transfer States (Slave Mode)
MST TRS BBSY ESTP STOP IRTR AASX AL AAS ADZ ACKB ICDRF ICDRE State
0 0 0 0 0 0 0 0 0 0 0 ⎯ 0 Idle state (flag
clearing
required)
0 0 1↑ 0 0 0 0↓ 0 0 0 0 ⎯ 1↑ Start condition
detected
0 1↑/0
*
1
1 0 0 0 0 ⎯ 1↑ 0 0 1↑ 1 SAR match in
first frame
(SARX≠SAR)
0 0 1 0 0 0 0 ⎯ 1↑ 1↑ 0 1↑ 1 General call
address
match in first
frame
(SARX≠H'00)
0 1↑/0
*
1
1 0 0 1↑ 1↑ ⎯ 0 0 0 1↑ 1 SAR match in
first frame
(SAR≠SARX)
0 1 1 0 0 ⎯ ⎯ ⎯ ⎯ 0 1↑ ⎯ ⎯ Transmission
end (ACKE=1
and ACKB=1)
0 1 1 0 0 1↑/0
*
1
⎯ ⎯ ⎯ 0 0 ⎯ 1↑ Transmission
end with
ICDRE=0
0 1 1 0 0 ⎯ ⎯ 0↓ 0↓ 0 0 ⎯ 0↓ ICDR write
with the above
state
0 1 1 0 0 ⎯ ⎯ ⎯ ⎯ 0 0 ⎯ 1 Transmission
end with
ICDRE=1
0 1 1 0 0 ⎯ ⎯ 0↓ 0↓ 0 0 ⎯ 0↓ ICDR write
with the above
state
0 1 1 0 0 1↑/0
*
2
⎯ 0 0 0 0 ⎯ 1↑ Automatic
data transfer
from ICDRT to
ICDRS with
the above
state
0 0 1 0 0 1↑/0
*
2
⎯ ⎯ ⎯ ⎯ ⎯ 1↑ ⎯ Reception end
with ICDRF=0
0 0 1 0 0 ⎯ ⎯ 0↓ 0↓ 0↓ ⎯ 0↓ ⎯ ICDR read
with the above
state