Section 17 I
2
C Bus Interface (IIC)
Rev. 3.00 Jan 25, 2006 page 482 of 872
REJ09B0286-0300
17.3.4
I
2
C Bus Mode Register (ICMR)
ICMR sets the communication format and transfer rate. It can only be accessed when the ICE bit
in ICCR is set to 1.
Bit
Bit Name
Initial Value R/W
Description
7
MLS
0
R/W
MSB-First/LSB-First Select
0: MSB-first
1: LSB-first
Set this bit to 0 when the I
2
C bus format is used.
6
WAIT
0
R/W
Wait Insertion Bit
This bit is valid only in master mode with the I
2
C bus
format.
0: Data and the acknowledge bit are transferred
consecutively with no wait inserted.
1: After the fall of the clock for the final data bit, the IRIC
flag is set to 1 in ICCR, and a wait state begins (with
SCL at the low level). When the IRIC flag is cleared to
0 in ICCR, the wait ends and the acknowledge bit is
transferred.
For details, see section 17.5.6, IRIC Setting Timing and
SCL Control.
5
4
3
CKS2
CKS1
CKS0
0
0
0
R/W
R/W
R/W
Serial Clock Select 2 to 0
These bits are valid only in master mode.
These bits select the required transfer rate, together with
bit IICX1 (channel 1) or IICX0 (channel 0) in STCR. See
table 17.3.
Summary of Contents for H8S/2158
Page 10: ...Rev 3 00 Jan 25 2006 page viii of lii...
Page 36: ...Rev 3 00 Jan 25 2006 page xxxiv of lii B Product Lineup 863 C Package Dimensions 864 Index 865...
Page 47: ...Rev 3 00 Jan 25 2006 page xlv of lii Appendix Figure C 1 Package Dimensions TBP 112A 864...
Page 54: ...Rev 3 00 Jan 25 2006 page lii of lii...
Page 70: ...Section 1 Overview Rev 3 00 Jan 25 2006 page 16 of 872 REJ09B0286 0300...
Page 118: ...Section 3 MCU Operating Modes Rev 3 00 Jan 25 2006 page 64 of 872 REJ09B0286 0300...
Page 126: ...Section 4 Exception Handling Rev 3 00 Jan 25 2006 page 72 of 872 REJ09B0286 0300...
Page 198: ...Section 6 Bus Controller Rev 3 00 Jan 25 2006 page 144 of 872 REJ09B0286 0300...
Page 326: ...Section 10 8 Bit PWM Timer PWM Rev 3 00 Jan 25 2006 page 272 of 872 REJ09B0286 0300...
Page 440: ...Section 15 Watchdog Timer WDT Rev 3 00 Jan 25 2006 page 386 of 872 REJ09B0286 0300...
Page 606: ...Section 17 I 2 C Bus Interface IIC Rev 3 00 Jan 25 2006 page 552 of 872 REJ09B0286 0300...
Page 742: ...Section 19 Multimedia Card Interface MCIF Rev 3 00 Jan 25 2006 page 688 of 872 REJ09B0286 0300...
Page 750: ...Section 21 D A Converter Rev 3 00 Jan 25 2006 page 696 of 872 REJ09B0286 0300...
Page 768: ...Section 22 A D Converter Rev 3 00 Jan 25 2006 page 714 of 872 REJ09B0286 0300...
Page 770: ...Section 23 RAM Rev 3 00 Jan 25 2006 page 716 of 872 REJ09B0286 0300...
Page 824: ...Section 26 Clock Pulse Generator Rev 3 00 Jan 25 2006 page 770 of 872 REJ09B0286 0300...
Page 844: ...Section 27 Power Down Modes Rev 3 00 Jan 25 2006 page 790 of 872 REJ09B0286 0300...
Page 878: ...Section 28 List of Registers Rev 3 00 Jan 25 2006 page 824 of 872 REJ09B0286 0300...
Page 926: ...Index Rev 3 00 Jan 25 2006 page 872 of 872 REJ09B0286 0300...