h8s-2158 Renesas Electronics Corporation., h8s-2158 Datasheet - Page 550

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

Section 17 I
Rev. 3.00 Jan 25, 2006 page 498 of 872
REJ09B0286-0300
Bit
3
2
1
0
Bit Name
MSTX
TRSX
WAITX
ACKXE
2
C Bus Interface (IIC)
Initial Value
0
0
0
0
R/W
R
R
R
R
Description
Master/Slave State X
Transmit/Receive State X
00: Slave receive mode
01: Slave transmit mode
10: Master receive mode
11: Master transmit mode
These bits are automatically set by an operation
reservation command.
Wait Insertion Bit X
This bit is valid only in master mode with the I
format. This bit is automatically set by an operation
reservation command.
0: Data and the acknowledge bit are transferred
1: After the fall of the clock for the final data bit, a wait
Acknowledge Bit Decision Selection X
0: The value of the acknowledge bit is ignored, and
1: If the acknowledge bit is 1, continuous transfer is
This bit is automatically set by an operation reservation
command.
consecutively with no wait inserted.
state begins (with SCL at the low level).
continuous transfer is performed. The value of the
received acknowledge bit is not indicated by the
ACKBX bit in ICCRX, which is always 0.
halted.
2
C bus