LC898240_16 Datasheet, PDF (13/23 Pages) ON Semiconductor – High Efficient Stepper Motor Controller

LC898240
MDSEL = 1h
MD = 0h: half step, both edges
MD = 1h: quarter step, both edges
MD = 2h: 1/8 step, both edges
MD = 3h: 1/16 step, both edges
MD = 4h: full step, rising edge
MD = 5h: half step, rising edge
MD = 6h: quarter step, rising edge
MD = 7h: 1/8 step, rising edge
Pin connection
LC898240 pin MD2 --- STK672-4XXX pin MODE3
LC898240 pin MD1 --- STK672-4XXX pin MODE2
LC898240 pin MD0 --- STK672-4XXX pin MODE1
MDSEL = 2h
MD = 0h: full step, rising edge
MD = 1h: half step, rising edge
MD = 2h: quarter step, rising edge
MD = 3h: 1/8 step, rising edge
MD = 4h: full step, rising edge
MD = 5h: half step, rising edge
MD = 6h: quarter step, rising edge
MD = 7h: 1/16 step, rising edge
Pin connection
LC898240 pin MD2 --- open
LC898240 pin MD1 --- LV8736V pin MD2
LC898240 pin MD0 --- LV8736V pin MD 1
MDSEL = 3h
MD = 0h: full step, rising edge
MD = 1h: half step, rising edge
MD = 2h: half step, rising edge
MD = 3h: quarter step, rising edge
MD = 4h: full step, rising edge
MD = 5h: half step, rising edge
MD = 6h: quarter step, rising edge
MD = 7h: half step, rising edge
Pin connection
LC898240 pin MD2 --- open
LC898240 pin MD1 --- LV8740V pin MD2
LC898240 pin MD0 --- LV8740V pin MD 1
DTSTG driver active setting (R/W)
Address Default
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2 Bit1 Bit0
0011h
00h GAD_REG ST_REG RST_REG OE_REG FR_REG
MD_REG[2:0]
GAD_REG
Enable/disable the high efficient (adaptive current control) function
Enabled when bit GAD_REG = 1 or pin GAD = H
ST_REG
Outputs ST signal from the pin ST during the register control mode
When it used with the unipolar driver STK672-XXXX, ST_REG value must be same as bit RST_REG.
During IO port control mode, ST_REG is ignored.
RST_REG
Outputs RST signal from the pin RSTO during the register control mode
During IO port control mode, RST_REG is ignored.
OE_REG
Outputs OE signal from the pin OE during the register control mode
During IO port control mode, OE_REG is ignored.
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