Section 17 I
2
C Bus Interface (IIC)
Rev. 3.00 Jan 25, 2006 page 493 of 872
REJ09B0286-0300
Bit
Bit
Name
Initial
Value
R/W
Description
4
AASX
0
R/(W)
*
Second Slave Address Recognition Flag
In I
2
C bus format slave receive mode, this flag is set to 1 if the
first frame following a start condition matches bits SVAX6 to
SVAX0 in SARX.
[Setting condition]
•
When the second slave address is detected in slave receive
mode and FSX = 0 in SARX
[Clearing conditions]
•
When 0 is written in AASX after reading AASX = 1
•
When a start condition is detected
•
In master mode
3
AL
0
R/(W)
*
Arbitration Lost Flag
Indicates that arbitration was lost in master mode.
[Setting conditions]
When ALSL = 0
•
If the internal SDA and SDA pin disagree at the rise of SCL in
master transmit mode
•
If the internal SCL line is high at the fall of SCL in master
transmit mode
When ALSL = 1
•
If the internal SDA and SDA pin disagree at the rise of SCL in
master transmit mode
•
If the SDA pin is driven low by another device before the I
2
C
bus interface drives the SDA pin low, after the start condition
instruction was executed in master transmit mode
[Clearing conditions]
•
When ICDR is written to (transmit mode) or read from
(receive mode)
•
When 0 is written in AL after reading AL = 1
Содержание H8S/2158
Страница 10: ...Rev 3 00 Jan 25 2006 page viii of lii...
Страница 36: ...Rev 3 00 Jan 25 2006 page xxxiv of lii B Product Lineup 863 C Package Dimensions 864 Index 865...
Страница 47: ...Rev 3 00 Jan 25 2006 page xlv of lii Appendix Figure C 1 Package Dimensions TBP 112A 864...
Страница 54: ...Rev 3 00 Jan 25 2006 page lii of lii...
Страница 70: ...Section 1 Overview Rev 3 00 Jan 25 2006 page 16 of 872 REJ09B0286 0300...
Страница 118: ...Section 3 MCU Operating Modes Rev 3 00 Jan 25 2006 page 64 of 872 REJ09B0286 0300...
Страница 126: ...Section 4 Exception Handling Rev 3 00 Jan 25 2006 page 72 of 872 REJ09B0286 0300...
Страница 198: ...Section 6 Bus Controller Rev 3 00 Jan 25 2006 page 144 of 872 REJ09B0286 0300...
Страница 326: ...Section 10 8 Bit PWM Timer PWM Rev 3 00 Jan 25 2006 page 272 of 872 REJ09B0286 0300...
Страница 440: ...Section 15 Watchdog Timer WDT Rev 3 00 Jan 25 2006 page 386 of 872 REJ09B0286 0300...
Страница 606: ...Section 17 I 2 C Bus Interface IIC Rev 3 00 Jan 25 2006 page 552 of 872 REJ09B0286 0300...
Страница 742: ...Section 19 Multimedia Card Interface MCIF Rev 3 00 Jan 25 2006 page 688 of 872 REJ09B0286 0300...
Страница 744: ...Section 20 Encryption Operation Circuit DES and GF Rev 3 00 Jan 25 2006 page 690 of 872 REJ09B0286 0300...
Страница 750: ...Section 21 D A Converter Rev 3 00 Jan 25 2006 page 696 of 872 REJ09B0286 0300...
Страница 768: ...Section 22 A D Converter Rev 3 00 Jan 25 2006 page 714 of 872 REJ09B0286 0300...
Страница 770: ...Section 23 RAM Rev 3 00 Jan 25 2006 page 716 of 872 REJ09B0286 0300...
Страница 824: ...Section 26 Clock Pulse Generator Rev 3 00 Jan 25 2006 page 770 of 872 REJ09B0286 0300...
Страница 844: ...Section 27 Power Down Modes Rev 3 00 Jan 25 2006 page 790 of 872 REJ09B0286 0300...
Страница 878: ...Section 28 List of Registers Rev 3 00 Jan 25 2006 page 824 of 872 REJ09B0286 0300...
Страница 926: ...Index Rev 3 00 Jan 25 2006 page 872 of 872 REJ09B0286 0300...