Datasheet
L6474 Programming manual
Doc ID 022529 Rev 3 33/52
9 Programming manual
9.1 Registers and flags description
The following is a map of the user registers available (detailed description in respective
paragraphs):
Table 9. Register map
Address
[Hex]
Register
name
Register function Len. [bit]
Reset
Hex
Reset Value
Remarks
(1)
h01 ABS_POS Current position 22 000000 0 R, WR
h02 EL_POS Electrical position 9 000 0 R, WR
h03 MARK Mark position 22 000000 0 R, WR
h04 RESERVED Reserved address 24
h05 RESERVED Reserved address 16
h06 RESERVED Reserved address 16
h07 RESERVED Reserved address 16
h08 RESERVED Reserved address 16
h15 RESERVED Reserved address 16 R, WR
h09 TVAL Reference current 7 29 1.3125 A R, WR
h0A RESERVED Reserved address 8
h0B RESERVED Reserved address 8
h0C RESERVED Reserved address 8
h0D RESERVED Reserved address 16
h0E T_FAST Fast decay/fall step time 8 19 1 µs / 5 µs R, WH
h0F TON_MIN Minimum ON time 7 29 20.5 µs R, WH
h10 TOFF_MIN Minimum OFF time 7 29 20.5 µs R, WH
h11 RESERVED Reserved address 8
h12 ADC_OUT ADC output 5 XX
(2)
R
h13 OCD_TH OCD threshold 4 8 3.38A R, WR
h14 RESERVED Reserved address 8
h16 STEP_MODE Step mode 8 7 16 microsteps, no synch R, WH
h17 ALARM_EN Alarms enables 8 FF All alarms enabled R, WR
h18 CONFIG IC configuration 16 2E88
Internal oscillator, 2 MHz
OSCOUT clock, supply
voltage compensation
disabled, overcurrent
shutdown enabled, slew-
rate = 290 V/µs TOFF = 40
µs
R, WH