h8s-2138 Renesas Electronics Corporation., h8s-2138 Datasheet - Page 527

• Manufacturer Part Number: h8s-2138
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2100 Series
• Manufacturer: Renesas Electronics Corporation.

Bit 1
IRIC
0
1
Description
Waiting for transfer, or transfer in progress
[Clearing conditions]
1. When 0 is written in IRIC after reading IRIC = 1
2. When ICDR is written or read by the DTC
Interrupt requested
[Setting conditions]
•
•
•
Except for above, when the condition to set the TDRE or RDRF internal flag to 1 is generated.
(When the TDRE or RDRF flag is cleared to 0)
(This is not always a clearing condition; see the description of DTC operation for details)
I
1. When a start condition is detected in the bus line state after a start condition is issued
2. When a wait is inserted between the data and acknowledge bit when WAIT = 1
3. At the end of data transfer
4. When a slave address is received after bus arbitration is lost
5. When 1 is received as the acknowledge bit when the ACKE bit is 1
I
1. When the slave address (SVA, SVAX) matches
2. When the general call address is detected
3. When 1 is received as the acknowledge bit when the ACKE bit is 1
4. When a stop condition is detected
Synchronous serial format, and formatless mode
1. At the end of data transfer
2. When a start condition is detected with serial format selected
3. When the SW bit is set to 1 in DDCSWR
2
2
C bus format master mode
C bus format slave mode
(when the TDRE flag is set to 1 because of first frame transmission)
(when a wait is not inserted (WAIT=0), at the rise of the 9th transmit/receive clock pulse, or
when a wait is inserted (WAIT=1), at the fall of the 8th transmit/receive clock pulse)
(when the AL flag is set to 1)
(when the ACKB bit is set to 1)
(when the AAS and AASX flags are set to 1)
and at the end of data transfer up to the subsequent retransmission start condition or stop
condition detection
(when the TDRE or RDRF flag is set to 1)
(when FS = 0 and the ADZ flag is set to 1)
and at the end of data transfer up to the subsequent retransmission start condition or stop
condition detection
(when the TDRE or RDRF flag is set to 1)
(when the ACKB bit is set to 1)
(when the STOP or ESTP flag is set to 1)
(when the TDRE or RDRF flag is set to 1)
Section 16 I
Rev. 4.00 Jun 06, 2006 page 473 of 1004
2
C Bus Interface [H8S/2138 Group Option]
REJ09B0301-0400
(Initial value)