h8s-2158 Renesas Electronics Corporation., h8s-2158 Datasheet - Page 534

• Manufacturer Part Number: h8s-2158
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2100 Series
• Manufacturer: Renesas Electronics Corporation.

Section 17 I
17.3.4
ICMR sets the communication format and transfer rate. It can only be accessed when the ICE bit
in ICCR is set to 1.
Rev. 3.00 Jan 25, 2006 page 482 of 872
REJ09B0286-0300
Bit
7
6
5
4
3
Bit Name
MLS
WAIT
CKS2
CKS1
CKS0
I
2
C Bus Mode Register (ICMR)
2
C Bus Interface (IIC)
Initial Value R/W
0
0
0
0
0
R/W
R/W
R/W
R/W
R/W
Description
MSB-First/LSB-First Select
0: MSB-first
1: LSB-first
Set this bit to 0 when the I
Wait Insertion Bit
This bit is valid only in master mode with the I
format.
0: Data and the acknowledge bit are transferred
1: After the fall of the clock for the final data bit, the IRIC
For details, see section 17.5.6, IRIC Setting Timing and
SCL Control.
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.
consecutively with no wait inserted.
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.
2
C bus format is used.
2
C bus