HD64F2638F20J Datasheet, PDF (606/1512 Pages) Renesas Technology Corp – Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2600 Series

Section 15 I²C Bus Interface [Option]
(Only for the H8S/2638, H8S/2639, and H8S/2630)
H8S/2639, H8S/2638, H8S/2636,
H8S/2630, H8S/2635 Group
Bit 6—Wait Insertion Bit (WAIT): Selects whether to insert a wait between the transfer of data
and the acknowledge bit, in master mode with the I²C bus format. When WAIT is set to 1, after
the fall of the clock for the final data bit, the IRIC 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. If WAIT is cleared to 0, data and acknowledge bits are transferred
consecutively with no wait inserted.
The IRIC flag in ICCR is set to 1 on completion of the acknowledge bit transfer, regardless of the
WAIT setting.
The setting of this bit is invalid in slave mode.
Bit 6
WAIT
0
1
Description
Data and acknowledge bits transferred consecutively
Wait inserted between data and acknowledge bits
(Initial value)
Page 556 of 1458
REJ09B0103-0800 Rev. 8.00
May 28, 2010