STMicroelectronics FlexSPIN: SPI configurable stepper and DC multi motor driver evaluation board EVAL6460 EVAL6460 Data Sheet
Product codes
EVAL6460
L6460
Power bridges
Doc ID 17713 Rev 1
59/139
14.1 Possible
configurations
The selection of the bridge configuration is done through SPI, by writing the MtrXTable[1:0]
bits in the MtrXCfg register. The table below shows the correspondence between
MtrXTable[1:0] bits and the bridge configuration.
bits in the MtrXCfg register. The table below shows the correspondence between
MtrXTable[1:0] bits and the bridge configuration.
Bridge 1 & 2 can be paralleled by means of Mtr1_2Parallel bit in the Mtr1_2Cfg register:
Bridge 1 and 2 paralleled will form superbridge1, bridge X side A and bridge X side B
paralleled form SuperHalfBridgeX or SuperSwitchX.
Bridge 1 and 2 paralleled will form superbridge1, bridge X side A and bridge X side B
paralleled form SuperHalfBridgeX or SuperSwitchX.
Bridge 3 & 4 can be configured by means of Mtr3_4CfgTable[1:0] bits in the Mtr3_4Cfg
register according to following table:
register according to following table:
The possible configurations for the bridges are described in the following.
Table 16.
Bridge selection
MtrXTable[1]
MtrXTable[0]
Bridge configuration
0
0
Full bridge
0
1
High or low side switch
1
0
Half bridge
1
1
High or low side switch
Table 17.
Bridge 3 and 4 configuration
Mtr3_4CfgTable[1]
Mtr3_4CfgTable[0]
Bridge 3 and 4 configuration
0
0
Two independent bridges
0
1
Two bridges in parallel
1
0
Stepper motor
1
1
Stepper motor