Datasheet

DS2155
185 of 238
Register Name:
IBOC
Register Description:
Interleave Bus Operation Control Register
Register Address:
C5h
Bit # 7 6 5 4 3 2 1 0
Name — IBS1 IBS0 IBOSEL IBOEN DA2 DA1 DA0
Default 0 0 0 0 0 0 0 0
Bits 0 to 2/Device Assignment Bits (DA0 to DA2)
DA2 DA1 DA0 Device Position on Bus
0 0 0 1st
0 0 1 2nd
0 1 0 3rd
0 1 1 4th
1 0 0 5th
1 0 1 6th
1 1 0 7th
1 1 1 8th
Bit 3/Interleave Bus Operation Enable (IBOEN)
0 = IBO disabled
1 = IBO enabled
Bit 4/Interleave Bus Operation Select (IBOSEL). This bit selects channel or frame interleave mode.
0 = channel interleave
1 = frame interleave
Bits 5, 6/IBO Bus Size Bit 1 (IBS0 to IBS1). Indicates how many devices are on the bus.
IBS1 IBS0 Bus Size
0 0 Two devices on bus
0 1 Four devices on bus
1 0 Eight devices on bus
1 1 Reserved for future use
Bit 7/Unused, must be set to 0 for proper operation