h8s-2158 Renesas Electronics Corporation., h8s-2158 Datasheet - Page 553

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

Note:
Bit
2
1
0
Bit Name
DERR
TOVR
NACK
* Only 0 can be written to clear the flag.
Initial Value
0
0
0
R/W
R/(W) * Transmit Data Disagree Error
R/(W) * Timeover
R/(W) * NACK Receive
Description
0: Normal operation
1: Transmit data disagree
[Clearing conditions]
[Setting condition]
0: Normal operation
1: A timeover is generated
[Clearing conditions]
[Setting condition]
0: Normal operation
1: NACK is received
[Clearing conditions]
[Setting condition]
When ICCMD is written to
When 0 is written to DERR after reading DERR = 1
The DERR bit is set to 1 when a stop condition is
detected in slave transmit mode. When the STOP
and DERR bits are set to 1 simultaneously, the
DERR value is ignored because this is normal
operation and not an error.
When internal transmit data disagrees with the
SDA pin level during transmission
When ICCMD is written to
When 0 is written to TOVR after reading TOVR = 1
When a timeover is generated
When ICCMD is written to
When 0 is written to NACK after reading NACK = 1
When NACK is received after data transmission is
completed (ACKBX = 1 received)
Rev. 3.00 Jan 25, 2006 page 501 of 872
Section 17 I
2
C Bus Interface (IIC)
REJ09B0286-0300