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Section 16 I
2
C Bus Interface 2 (IIC2)
Rev. 4.00 Sep. 14, 2005 Page 484 of 982
REJ09B0023-0400
16.3.5 I
2
C Bus Status Register (ICSR)
ICSR is an 8-bit readable/writable register that confirms interrupt request flags and their status.
ICSR is initialized to H
'
00 by a power-on reset.
Bit Bit
Name
Initial
Value R/W
Description
7
TDRE
0
R/W
Transmit Data Register Empty
[Setting conditions]
•
When data is transferred from ICDRT to ICDRS and
ICDRT becomes empty
•
When TRS is set
•
When the start condition (including retransmission)
is issued
•
When slave mode is changed from receive mode to
transmit mode
[Clearing conditions]
•
When 0 is written in TDRE after reading TDRE = 1
•
When data is written to ICDRT
6 TEND
0 R/W
Transmit
End
[Setting conditions]
•
When the ninth clock of SCL rises with the I
2
C bus
format while the TDRE flag is 1
•
When the final bit of transmit frame is sent with the
clock synchronous serial format
[Clearing conditions]
•
When 0 is written in TEND after reading TEND = 1
•
When data is written to ICDRT with an instruction
5
RDRF
0
R/W
Receive Data Register Full
[Setting condition]
•
When a receive data is transferred from ICDRS to
ICDRR
[Clearing conditions]
•
When 0 is written in RDRF after reading RDRF = 1
•
When ICDRR is read with an instruction
Содержание HD6417641
Страница 2: ...Rev 4 00 Sep 14 2005 Page ii of l...
Страница 7: ...Rev 4 00 Sep 14 2005 Page vii of l...
Страница 11: ...Rev 4 00 Sep 14 2005 Page xi of l USB Universal serial bus WDT Watch dog timer...
Страница 12: ...Rev 4 00 Sep 14 2005 Page xii of l...
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Страница 204: ...Section 4 Clock Pulse Generator CPG Rev 4 00 Sep 14 2005 Page 154 of 982 REJ09B0023 0400...
Страница 212: ...Section 5 Watchdog Timer WDT Rev 4 00 Sep 14 2005 Page 162 of 982 REJ09B0023 0400...
Страница 228: ...Section 6 Power Down Modes Rev 4 00 Sep 14 2005 Page 178 of 982 REJ09B0023 0400...
Страница 246: ...Section 8 X Y Memory Rev 4 00 Sep 14 2005 Page 196 of 982 REJ09B0023 0400...
Страница 318: ...Section 11 User Break Controller UBC Rev 4 00 Sep 14 2005 Page 268 of 982 REJ09B0023 0400...
Страница 454: ...Section 12 Bus State Controller BSC Rev 4 00 Sep 14 2005 Page 404 of 982 REJ09B0023 0400...
Страница 500: ...Section 13 Direct Memory Access Controller DMAC Rev 4 00 Sep 14 2005 Page 450 of 982 REJ09B0023 0400...
Страница 504: ...Section 14 U Memory Rev 4 00 Sep 14 2005 Page 454 of 982 REJ09B0023 0400...
Страница 566: ...Section 17 Compare Match Timer CMT Rev 4 00 Sep 14 2005 Page 516 of 982 REJ09B0023 0400...
Страница 734: ...Section 18 Multi Function Timer Pulse Unit MTU Rev 4 00 Sep 14 2005 Page 684 of 982 REJ09B0023 0400...
Страница 868: ...Section 21 A D Converter Rev 4 00 Sep 14 2005 Page 818 of 982 REJ09B0023 0400...
Страница 914: ...Section 23 I O Ports Rev 4 00 Sep 14 2005 Page 864 of 982 REJ09B0023 0400...
Страница 956: ...Section 24 List of Registers Rev 4 00 Sep 14 2005 Page 906 of 982 REJ09B0023 0400...
Страница 1016: ...Section 25 Electrical Characteristics Rev 4 00 Sep 14 2005 Page 966 of 982 REJ09B0023 0400...
Страница 1024: ...Appendix Rev 4 00 Sep 14 2005 Page 974 of 982 REJ09B0023 0400...
Страница 1032: ...Rev 4 00 Sep 14 2005 Page 982 of 982 REJ09B0023 0400 X X Y data addressing 52 X Y memory 193...
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Страница 1036: ...SH7641 Hardware Manual...