RX610 Group
22. I
2
C Bus Interface (RIIC)
R01UH0032EJ0120 Rev.1.20
Page 714 of 1006
Feb 20, 2013
GCA Flag (General Call Address Detection)
[Setting condition]
•
When the received slave address matches the general call address (0000 000b + 0 [W]) with the GCAE bit in ICSER
set to 1 (general call address detection enabled)
This flag is set to 1 at the rising edge of the ninth SCL clock cycle in the frame.
[Clearing conditions]
•
When 0 is written to the GCA bit after reading GCA = 1
•
When a stop condition is detected
•
When the received slave address does not match the general call address (0000 000b + 0 [W]) with the GCAE bit in
ICSER set to 1 (general call address detection enabled)
This flag is cleared to 0 at the rising edge of the ninth SCL clock cycle in the frame.
•
When 1 is written to the IICRST bit in ICCR1 to apply an RIIC reset or an internal reset
DID Flag (Device-ID Address Detection)
[Setting condition]
•
When the first frame received immediately after a start condition or restart condition is detected matches a value of
(device ID (1111 100b) + 0 [W]) with the DIDE bit in ICSER set to 1 (Device-ID address detection enabled)
This flag is set to 1 at the rising edge of the ninth SCL clock cycle in the frame.
[Clearing conditions]
•
When 0 is written to the DID bit after reading DID = 1
•
When a stop condition is detected
•
When the first frame received immediately after a start condition or restart condition is detected does not match a
value of (device ID (1111 100b)) with the DIDE bit in ICSER set to 1 (Device-ID address detection enabled)
This flag is cleared to 0 at the rising edge of the ninth SCL clock cycle in the frame.
•
When the first frame received immediately after a start condition or restart condition is detected matches a value of
(device ID (1111 100b) + 0 [W]) and the second frame does not match any of slave addresses 0 to 2 with the DIDE
bit in ICSER set to 1 (Device-ID address detection enabled)
This flag is cleared to 0 at the rising edge of the ninth SCL clock cycle in the frame.
•
When 1 is written to the IICRST bit in ICCR1 to apply an RIIC reset or an internal reset
Summary of Contents for RX600 Series
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