Datasheet

Section 16 I
2
C Bus Interface [Option]
Rev. 4.00 Sep 27, 2006 page 512 of 1130
REJ09B0327-0400
Bit 7—Error Stop Condition Detection Flag (ESTP): Indicates that a stop condition has been
detected during frame transfer in I
2
C bus format slave mode.
Bit 7
ESTP Description
0 No error stop condition (Initial value)
[Clearing conditions]
1. When 0 is written in ESTP after reading ESTP = 1
2. When the IRIC flag is cleared to 0
1
• In I
2
C bus format slave mode
Error stop condition detected
[Setting condition]
When a stop condition is detected during frame transfer
• In other modes
No meaning
Bit 6—Normal Stop Condition Detection Flag (STOP): Indicates that a stop condition has been
detected after completion of frame transfer in I
2
C bus format slave mode.
Bit 6
STOP Description
0 No normal stop condition (Initial value)
[Clearing conditions]
1. When 0 is written in STOP after reading STOP = 1
2. When the IRIC flag is cleared to 0
1
• In I
2
C bus format slave mode
Normal stop condition detected
[Setting condition]
When a stop condition is detected after completion of frame transfer
• In other modes
No meaning
Bit 5—I
2
C Bus Interface Continuous Transmission/Reception Interrupt Request Flag
(IRTR): Indicates that the I
2
C bus interface has issued an interrupt request to the CPU, and the
source is completion of reception/transmission of one frame in continuous transmission/reception
for which DTC activation is possible. When the IRTR flag is set to 1, the IRIC flag is also set to 1
at the same time.