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Section 16 I
2
C Bus Interface 2 (IIC2)
Rev. 4.00 Sep. 14, 2005 Page 486 of 982
REJ09B0023-0400
Bit Bit
Name
Initial
Value R/W
Description
1 AAS 0 R/W
Slave
Address Recognition Flag
In slave receive mode, this flag is set to 1 if the first
frame following a start condition matches bits SVA6 to
SVA0 in SAR.
[Setting conditions]
•
When the slave address is detected in slave receive
mode
•
When the general call address is detected in slave
receive mode.
[Clearing condition]
•
When 0 is written in AAS after reading AAS=1
0
ADZ
0
R/W
General Call Address Recognition Flag
This bit is valid in I
2
C bus format slave receive mode.
[Setting condition]
•
When the general call address is detected in slave
receive mode
[Clearing condition]
•
When 0 is written in ADZ after reading ADZ=1
16.3.6
Slave Address Register (SAR)
SAR is an 8-bit readable/writable register that selects the communications format and sets the
slave address. In slave mode with the I
2
C bus format, if the upper seven bits of SAR match the
upper seven bits of the first frame received after a start condition, this module operates as the slave
device. SAR is initialized to H
'
00 by a power-on reset.
Bit Bit
Name
Initial
Value R/W Description
7 to 1
SVA6 to SVA0 All 0
R/W
Slave Address 6 to 0
These bits set a unique address in bits SVA6 to SVA0,
differing form the addresses of other slave devices
connected to the I
2
C bus.
0 FS
0
R/W
Format
Select
0: I
2
C bus format is selected
1: Clocked synchronous serial format is selected
Summary of Contents for HD6417641
Page 2: ...Rev 4 00 Sep 14 2005 Page ii of l...
Page 7: ...Rev 4 00 Sep 14 2005 Page vii of l...
Page 11: ...Rev 4 00 Sep 14 2005 Page xi of l USB Universal serial bus WDT Watch dog timer...
Page 12: ...Rev 4 00 Sep 14 2005 Page xii of l...
Page 28: ...Rev 4 00 Sep 14 2005 Page xxviii of l...
Page 204: ...Section 4 Clock Pulse Generator CPG Rev 4 00 Sep 14 2005 Page 154 of 982 REJ09B0023 0400...
Page 212: ...Section 5 Watchdog Timer WDT Rev 4 00 Sep 14 2005 Page 162 of 982 REJ09B0023 0400...
Page 228: ...Section 6 Power Down Modes Rev 4 00 Sep 14 2005 Page 178 of 982 REJ09B0023 0400...
Page 246: ...Section 8 X Y Memory Rev 4 00 Sep 14 2005 Page 196 of 982 REJ09B0023 0400...
Page 318: ...Section 11 User Break Controller UBC Rev 4 00 Sep 14 2005 Page 268 of 982 REJ09B0023 0400...
Page 454: ...Section 12 Bus State Controller BSC Rev 4 00 Sep 14 2005 Page 404 of 982 REJ09B0023 0400...
Page 504: ...Section 14 U Memory Rev 4 00 Sep 14 2005 Page 454 of 982 REJ09B0023 0400...
Page 566: ...Section 17 Compare Match Timer CMT Rev 4 00 Sep 14 2005 Page 516 of 982 REJ09B0023 0400...
Page 868: ...Section 21 A D Converter Rev 4 00 Sep 14 2005 Page 818 of 982 REJ09B0023 0400...
Page 914: ...Section 23 I O Ports Rev 4 00 Sep 14 2005 Page 864 of 982 REJ09B0023 0400...
Page 956: ...Section 24 List of Registers Rev 4 00 Sep 14 2005 Page 906 of 982 REJ09B0023 0400...
Page 1016: ...Section 25 Electrical Characteristics Rev 4 00 Sep 14 2005 Page 966 of 982 REJ09B0023 0400...
Page 1024: ...Appendix Rev 4 00 Sep 14 2005 Page 974 of 982 REJ09B0023 0400...
Page 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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Page 1036: ...SH7641 Hardware Manual...