M32C8A Datasheet, PDF (250/372 Pages) Renesas Technology Corp – RENESAS MCU M16C FAMILY / M32C/80 Series

M32C/8A Group
17. Serial Interfaces
(1) In slave mode,
the CKDIR bit is set to 1 (external clock) and the STSPSEL bit is set to 0 (no start condition and stop condition output)
SCLi
SDAi
IR bit in the ¹
BCNiIC register ₀
Start condition detection interrupt
Stop condition detection interrupt
Set to 0 by an interrupt request acknowledgement or by program
(2) In master mode,
the CKDIR bit is set to 0 (internal clock) and the STSPSEL bit is set to 1 (start condition and stop condition output)
Setting value of
0
1
0
STSPSEL bit
1
0
SCLi
SDAi
The STAREQ bit
is set to 1 (start)
IR bit in the ¹
BCNiIC register ₀
i = 0 to 4
Start condition detection interrupt
The STAREQ bit is set to 1 (start)
Stop condition detection interrupt
Set to 0 by an interrupt request acknowledgement or by program
Figure 17.26 STSPSEL Bit Function
Rev.1.00 Jul 15, 2007 Page 233 of 352
REJ09B0385-0100