RX610 Group
22. I
2
C Bus Interface (RIIC)
R01UH0032EJ0120 Rev.1.20
Page 712 of 1006
Feb 20, 2013
22.2.9
I
2
C Bus Status Register 1 (ICSR1)
AAS1
Addresses: RIIC0.ICSR1 0008 8308h, RIIC1.ICSR1 0008 8328h
b7
b6
b5
b4
b3
b2
b1
b0
Value after reset:
0
0
0
0
0
0
0
0
HOA
—
DID
—
GCA
AAS2
AAS0
Bit
Symbol
Bit Name
Description
R/W
b0
AAS0
Slave Address 0 Detection Flag
0: Slave address 0 is not detected
1: Slave address 0 is detected
•
This bit is set to 1 when the received slave address matches the
SVA[7:1] value in SARL0 while the FS bit in SARU0 is 0 (7-bit
address format selected).
•
This bit is set to 1 when the received slave address matches a
value of (1111 0b + SVA [9:8] in SARU0) and the following
address matches the SARL0 value while the FS bit in SARU0 is
1 (10-bit address format selected).
(This bit is set at the rising edge of the ninth SCL clock cycle in the
SARL0 match determination frame.)
R/(W)
*
b1
AAS1
Slave Address 1 Detection Flag
0: Slave address 1 is not detected
1: Slave address 1 is detected
•
This bit is set to 1 when the received slave address matches the
SVA[7:1] value in SARL1 while the FS bit in SARU1 is 0 (7-bit
address format selected).
•
This bit is set to 1 when the received slave address matches a
value of (1111 0b + SVA [9:8] in SARU1) and the following
address matches the SARL1 value while the FS bit in SARU1 is
1 (10-bit address format selected).
(This bit is set at the rising edge of the ninth SCL clock cycle in the
SARL1 match determination frame.)
R/(W)
*
b2
AAS2
Slave Address 2 Detection Flag
0: Slave address 2 is not detected
1: Slave address 2 is detected
•
This bit is set to 1 when the received slave address matches the
SVA[7:1] value in SARL2 while the FS bit in SARU2 is 0 (7-bit
address format selected).
•
This bit is set to 1 when the received slave address matches a
value of (1111 0b + SVA [9:8] in SARU2) and the following
address matches the SARL2 value while the FS bit in SARU2 is
1 (10-bit address format selected).
(This bit is set at the rising edge of the ninth SCL clock cycle in the
SARL2 match determination frame.)
R/(W)
*
b3
GCA
General Call Address Detection Flag 0: General call address is not detected
1: General call address is detected
•
This bit is set to 1 when the received slave address matches the
general call address (all 0).
R/(W)
*
b4
Reserved
This bit is always read as 0. The write value should always be 0.
R/W
Summary of Contents for RX600 Series
Page 1006: ...RX610 Group R01UH0032EJ0120 ...