R01UH0092EJ0110 Rev.1.10
Page 579 of 807
Jul 31, 2012
M16C/64C Group
25. Multi-master I
2
C-bus Interface
Refer to 14.7 “Interrupt Control”. Table 25.17 lists Registers Associated with I
2
C Interface Interrupts.
Table 25.16
I
2
C-bus Interrupts
Interrupt
Interrupt Source
Associated Bits (Register)
Interrupt
Control
Register
Interrupt
enabled
Interrupt
request
I
2
C
-bus
Interrupt
Completion of data transmit/receive
When the ACKCLK bit in the S20 register is 0:
Detection of the falling edge of the last clock of
transmit/receive data through the SCLMM pin
When the ACKCLK bit is 1:
Detection of the falling edge of ACK clock
through the SCLMM pin
—
PIN (S10)
IICIC
Data reception (before ACK clock)
Detection of the falling edge of the last clock of
transmit/receive data through the SCLMM pin
WIT (S3D0)
Detection of slave address match
Received slave address matches bits SAD6 to
SAD0 in registers S0D0 to S0D2 in slave
receive mode with addressing format
(AAS bit in the S10 register = 1)
—
Detection of general call
General call in slave receive mode with
addressing format
(ADR0 bit in the S10 register = 1)
Completion of receiving slave address in slave
receive mode with free data format
Stop condition detected
SIM (S3D0)
SCPIN (S4D0)
Timeout detected
TOE (S4D0)
TOF (S4D0)
SCL/SDA
inte
rr
upt
Detection of the falling edge or rising edge of
input/output signal for the SCLMM or SDAMM
pin
—
—
SCLDAIC
Summary of Contents for M16C Series
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