SI3200-X-FS SILABS [Silicon Laboratories], SI3200-X-FS Datasheet - Page 48
SI3200-X-FS
Manufacturer Part Number
SI3200-X-FS
Description
Manufacturer
SILABS [Silicon Laboratories]
Datasheet
1.SI3200-X-FS.pdf
(112 pages)
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Si3220/25
48
Parameter
Ground Key Interrupt Pending
Ground Key Interrupt Enable
Ground Key Linefeed Shadow
Ground Key Detect Status
Ground Key Detect Debounce
Interval
Longitudinal Current Sense
Ground Key Threshold
(enabled)
Ground Key Threshold
(released)
Ground Key Filter Coefficient
*Note: The usable range for LONGHITH and LONGLOTH is limited to 16 mA. Setting a value >16 mA will disable threshold
detection.
Table 27. Register and RAM Locations Used for Ground Key Detection
Mnemonics
LONGLOTH
LONGHITH
LINEFEED
LONGLPF
LONGDBI
IRQVEC2
Register/
LCRRTP
IRQEN2
ILONG
RAM
LONGLPF[15:3]
LONGDBI[15:0]
Register/RAM
GLOTH[15:0]
ILONG[15:0]
HITH[15:0]
Rev. 1.2
LONGHI
LFS[2:0]
LONGS
LONGE
LONG-
LON-
Bits
Programmable
Monitor only
Monitor only
Monitor only
0 to 40.96 s
101.09 mA*
101.09 mA*
0 to 4000h
Yes/No
Yes/No
Range
0 to
0 to
3.097 µA
3.097 µA
1.25 ms
LSB
Size
N/A
N/A
N/A
N/A
N/A
See Table 20
Resolution
396.4 µA
396.4 µA
1.25 ms
N/A
N/A
N/A
N/A
N/A
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