Datasheet

L6470 Programming manual
Doc ID16737 Rev 5 49/70
9.1.21 CONFIG
The CONFIG register has the following structure:
The OSC_SEL and EXT_CLK bits set the system clock source:
Table 21. ALARM_EN register
ALARM_EN bit Alarm condition
0 (LSB) Overcurrent
1 Thermal shutdown
2 Thermal warning
3 Undervoltage
4 Stall detection (Bridge A)
5 Stall detection (Bridge B)
6 Switch turn-on event
7 (MSB) Wrong or non-performable command
Table 22. CONFIG register
Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8
F_PWM_INT F_PWM_DEC POW_SR
Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
OC_SD RESERVED EN_VSCOMP SW_MODE EXT_CLK OSC_SEL
Table 23. Oscillator management
EXT_C
LK
OSC_SEL[2..0] Clock source OSCIN OSCOUT
0000
Internal oscillator: 16 MHz Unused Unused
0001
0010
0011
1000Internal oscillator: 16 MHz Unused
Supplies a 2-MHz
clock
1001Internal oscillator: 16 MHz Unused
Supplies a 4-MHz
clock
1010Internal oscillator: 16 MHz Unused
Supplies an 8-MHz
clock
1011Internal oscillator: 16 MHz Unused
Supplies a 16-MHz
clock