HD6432160 RENESAS [Renesas Technology Corp], HD6432160 Datasheet - Page 449
HD6432160
Manufacturer Part Number
HD6432160
Description
Hitachi 16-Bit Single-Chip Microcomputer
Manufacturer
RENESAS [Renesas Technology Corp]
Datasheet
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When the DTC is used, IRIC is cleared automatically and transfer can be performed continuously
without CPU intervention.
2
When, with the I
C bus format selected, IRIC is set to 1 and an interrupt is generated, other flags
must be checked in order to identify the source that set IRIC to 1. Although each source has a
corresponding flag, caution is needed at the end of a transfer.
When the ICDRE or ICDRF flag is set, the IRTR flag may or may not be set. The IRTR flag (the
DTC start request flag) is not set at the end of a data transfer up to detection of a retransmission
2
start condition or stop condition after a slave address (SVA) or general call address match in I
C
bus format slave mode.
Even when the IRIC flag and IRTR flag are set, the ICDRE or ICDRF flag may not be set. The
IRIC and IRTR flags are not cleared at the end of the specified number of transfers in continuous
transfer using the DTC. The ICDRE or ICDRF flag is cleared, however, since the specified
number of ICDR reads or writes have been completed.
Tables 16.4 and 16.5 show the relationship between the flags and the transfer states.
Rev. 2.0, 08/02, page 409 of 788
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