IC-MB4_15 Datasheet, PDF (27/40 Pages) IC-Haus GmbH – BiSS INTERFACE MASTER

iC-MB4
BiSS INTERFACE MASTER
preliminary
EN_MO
0
1
Addr. 0xE5; bit 1
R/W
MO forced to low
Parameterized processing time by master on MO
signal active (length: MO_BUSY)
Table 27: MO control
Rev B2, Page 27/40
IDA_TEST
Addr. 0xE5; bit 3
R/W
0
The slaves feedback (IDA) is tested before
execution (EX bit after IDA, see figure 18)
1
Immediate execution (see figure 17)
Table 31: Command/instruction execution control
MO_BUSY
Addr. 0xE9; bit 7:0
R/W
CMD(1:0)
Addr. 0xE5; bit 5:4
R/W
0x00 . . .
0xFF
Count of MA clocks as the parameterized
processing time by master on MO signal
0x00
Command/instruction 0b00
Premise: EN_MO = 1
0x01
Command/instruction 0b01
0x02
Command/instruction 0b10
Table 28: Master controlled processing time
0x03
Command/instruction 0b11
Configuration of Command/Instruction Communi-
cation
The command/instruction communication is a subset
of the control communication. iC-MB4 does support
autonomous command/instruction communication only
with BiSS C.
CTS
0
1
Addr. 0xE5; bit 7
R/W
Command/instruction communication
Register communication, not applicable with
Command/instruction communication
Table 29: Type of control communication
REGVERS
Addr. 0xE5; bit 6
R/W
1
Command communication BiSS C
0
Not applicable with command/instruction
communication
Table 30: Type of protocol for register access
Table 32: Command of accessed slave
IDS(7:0)
0x00
0x01
0x02
0x04
0x08
0x10
0x20
0x40
0x80
0x03
0xFF
Addr. 0x80; bit 7:0
R/W
IDS addressing data (broadcast to all IDs)
IDS addressing data (addressing ID 0)
IDS addressing data (addressing ID 1)
IDS addressing data (addressing ID 2)
IDS addressing data (addressing ID 3)
IDS addressing data (addressing ID 4)
IDS addressing data (addressing ID 5)
IDS addressing data (addressing ID 6)
IDS addressing data (addressing ID 7)
IDS addressing data (addressing ID 0 and ID 1
IDS addressing data (addressing ID 0 . . . 7)
Table 33: IDS command/instruction addressing, com-
binable
The combination of CMD and IDS result in the total com-
mand/instruction. The command/instruction is executed
by instruction INSTR = 0b100, b0110 or 0b111.
Figure 17: Command/instruction frame (broadcast)
Figure 18: Command/instruction frame (addressed)