ST L6470H User Manual

Programming manual L6470
46/64 Doc ID 16737 Rev 2
The OSC_SEL and EXT_CLK bits set the system clock source:
The SW_MODE bit sets the external switch to act as HardStop interrupt or not:
Table 22. Oscillator management
EXT_CLK OSC_SEL[2..0] Clock source OSCIN OSCOUT
0000
Internal Oscillator: 16MHz Unused Unused
0001
0010
0011
1 0 0 0 Internal Oscillator: 16MHz Unused
Supplies a 2MHz
clock
1 0 0 1 Internal Oscillator: 16MHz Unused
Supplies a 4MHz
clock
1 0 1 0 Internal oscillator: 16MHz Unused
Supplies a 8MHz
clock
1 0 1 1 Internal oscillator: 16MHz Unused
Supplies a 16MHz
clock
0100
External crystal or
resonator: 8MHz
Crystal/reson
ator driving
Crystal/resonator
driving
0101
External crystal or
resonator: 16MHz
Crystal/reson
ator driving
Crystal/resonator
driving
0110
External crystal or
resonator: 24MHz
Crystal/reson
ator driving
Crystal/resonator
driving
0111
External crystal or
resonator: 32MHz
Crystal/reson
ator driving
Crystal/resonator
driving
1100
Ext clock source: 8MHz
(Crystal/resonator driver
disabled)
Clock source
Supplies inverted
OSCIN signal
1101
Ext clock source: 16MHz
(Crystal/resonator driver
disabled)
Clock source
Supplies inverted
OSCIN signal
1110
Ext clock source: 24MHz
(Crystal/resonator driver
disabled)
Clock source
Supplies inverted
OSCIN signal
1111
Ext clock source: 32MHz
(Crystal/resonator driver
disabled)
Clock source
Supplies inverted
OSCIN signal
Table 23. External switch hard stop interrupt mode
SW_MODE Switch mode
0 HardStop interrupt
1 User disposal

ST L6470H Specifications

General

Brand	ST
Model	L6470H
Category	Computer Hardware
Language	English