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information.
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
0 0 0 1
st
Device on bus
0 0 1 2
nd
Device on bus
0 1 0 3
rd
Device on bus
0 1 1 4
th
Device on bus
1 0 0 5
th
Device on bus
1 0 1 6
th
Device on bus
1 1 0 7
th
Device on bus
1 1 1 8
th
Device on bus
Bit 3/Interleave Bus Operation Enable (IBOEN).
0 = Interleave Bus Operation disabled
1 = Interleave Bus Operation enabled
Bit 4/Interleave Bus Operation Select (IBOSEL). This bit selects channel- or frame-interleave mode.
0 = Channel Interleave
1 = Frame Interleave
Bits 5 to 6/IBO Bus Size bit 1 (IBS0 to IBS1). Indicates how many devices 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 zero for proper operation.