h8s-2111b Renesas Electronics Corporation., h8s-2111b Datasheet - Page 376

• Manufacturer Part Number: h8s-2111b
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family / H8s/2100 Series
• Manufacturer: Renesas Electronics Corporation.

9. Note on when I
Note: This restriction on usage can be canceled by setting the FNC1 and FNC0 bits to 1 in
Rev. 1.00, 05/04, page 342 of 544
In cases where the rise time of the 9th clock of SCL exceeds the stipulated value because of a
large bus load capacity or where a slave device in which a wait can be inserted by driving the
SCL pin low is used, the stop condition instruction should be issued after reading SCL after the
rise of the 9th clock pulse and determining that it is low.
ICXR.
SDA
IRIC
SCL
2
C bus interface stop condition instruction is issued
VIH
9th clock
Figure 13.31 Stop Condition Issuance Timing
SCL is detected as low
because the rise of the
waveform is delayed
[1] SCL = low determination
Secures a high period
[2] Stop condition instruction issuance
Stop condition generation