Section 18 I
2
C Bus Interface (IIC)
Rev. 1.00 Mar. 12, 2008 Page 604 of 1178
REJ09B0403-0100
Table 18.4 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
Summary of Contents for H8S Family
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Page 28: ...Rev 1 00 Mar 12 2008 Page xxviii of xIviii...
Page 48: ...Rev 1 00 Mar 12 2008 Page xlviii of xIviii...
Page 70: ...Section 1 Overview Rev 1 00 Mar 12 2008 Page 22 of 1178 REJ09B0403 0100...
Page 108: ...Section 2 CPU Rev 1 00 Mar 12 2008 Page 60 of 1178 REJ09B0403 0100...
Page 116: ...Section 3 MCU Operating Modes Rev 1 00 Mar 12 2008 Page 68 of 1178 REJ09B0403 0100...
Page 152: ...Section 5 Interrupt Controller Rev 1 00 Mar 12 2008 Page 104 of 1178 REJ09B0403 0100...
Page 206: ...Section 6 Bus Controller BSC Rev 1 00 Mar 12 2008 Page 158 of 1178 REJ09B0403 0100...
Page 420: ...Section 9 14 Bit PWM Timer PWMX Rev 1 00 Mar 12 2008 Page 372 of 1178 REJ09B0403 0100...
Page 476: ...Section 12 Watchdog Timer WDT Rev 1 00 Mar 12 2008 Page 428 of 1178 REJ09B0403 0100...
Page 552: ...Section 14 CRC Operation Circuit CRC Rev 1 00 Mar 12 2008 Page 504 of 1178 REJ09B0403 0100...
Page 712: ...Section 18 I2 C Bus Interface IIC Rev 1 00 Mar 12 2008 Page 664 of 1178 REJ09B0403 0100...
Page 804: ...Section 19 LPC Interface LPC Rev 1 00 Mar 12 2008 Page 756 of 1178 REJ09B0403 0100...
Page 838: ...Section 20 Ethernet Controller EtherC Rev 1 00 Mar 12 2008 Page 790 of 1178 REJ09B0403 0100...
Page 964: ...Section 24 RAM Rev 1 00 Mar 12 2008 Page 916 of 1178 REJ09B0403 0100...
Page 1066: ...Section 25 Flash Memory Rev 1 00 Mar 12 2008 Page 1018 of 1178 REJ09B0403 0100...
Page 1098: ...Section 26 Boundary Scan JTAG Rev 1 00 Mar 12 2008 Page 1050 of 1178 REJ09B0403 0100...
Page 1226: ...Rev 1 00 Mar 12 2008 Page 1178 of 1178 REJ09B0403 0100...
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Page 1230: ...H8S 2472 Group H8S 2462 Group Hardware Manual...