Renesas RX600 Series, User Manual

Page: 720 / 1006

RX610 Group 22. I
2
C Bus Interface (RIIC)
R01UH0032EJ0120 Rev.1.20 Page 720 of 1006
Feb 20, 2013
22.2.11 Slave Address Register Ly (SARLy) (y = 0 to 2)
b7 b6 b5 b4 b3 b2 b1 b0
Value after reset: 0 0 0 0 0 0 0 0
SVA0
SVA[7:1]
Addresses: RIIC0.SARL0 0008 830Ah, RIIC1.SARL0 0008 832Ah
RIIC0.SARL1 0008 830Ch, RIIC1.SARL1 0008 832Ch
RIIC0.SARL2 0008 830Eh, RIIC1.SARL2 0008 832Eh
Bit Symbol Bit Name Description R/W
b0 SVA0 10-Bit Address LSB The least significant bit (LSB) of a 10-bit slave address is set
•
When the FS bit in SARUy is 0 (7-bit address format), this bit is invalid
•
When the FS bit in SARUy is 1 (10-bit address format), this bit is the
LSB of the lower 8-bit address (combined with the SVA[7:1] bits) of a
10-bit slave address
R/W
b7 to b1 SVA[7:1] 7-Bit Address/10-Bit Address
Lower Bits
A slave address is set
•
When the FS bit in SARUy is 0 (7-bit address format), these bits form
a 7-bit slave address
•
When the FS bit in SARUy is 1 (10-bit address format), these bits form
the lower 8-bit address (combined with the SVA0 bit) of a 10-bit slave
address
R/W
SARLy sets slave address y (7-bit address or lower eight bits of 10-bit address).
SVA0 Bit (10-Bit Address LSB)
When the 10-bit address format is selected (SARUy.FS = 1), this bit functions as the LSB of a 10-bit address and forms
the lower eight bits of a 10-bit address in combination with the SVA[7:1] bits.
When the SARyE bit in ICSER is set to 1 (SARLy and SARUy enabled) and the SARUy.FS bit is 1, this bit is valid.
While the SARUy.FS bit or SARyE bit is 0, the setting of this bit is ignored.
SVA[7:1] Bits (7-Bit Address/10-Bit Address Lower Bits)
When the 7-bit address format is selected (SARUy.FS = 0), these bits function as a 7-bit address. When the 10-bit
address format is selected (SARUy.FS = 1), these bits function as the lower eight bits of a 10-bit address in combination
with the SVA0 bit.
While the SARyE bit in ICSER is 0, the setting of these bits is ignored.