SX1508EVK Semtech, SX1508EVK Datasheet - Page 29
SX1508EVK
Manufacturer Part Number
SX1508EVK
Description
Evaluation Board For SX1508
Manufacturer
Semtech
- Current page: 29 of 41
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0xXX
0x2A
0x7D
ADVANCED COMMUNICATIONS & SENSING
Rev 1 – 30
RegTFallX
RegHighInput
RegReset
th
Oct. 2009
Table 12 – SX1508 Configuration Registers Description
0x00
0x00
0x00
7:5
4:0
7:0
7:0
Unused
Fade Out setting of IO[X]
0 : OFF
1 - 15 : TFallX = (RegIOnX-(4xRegOffX[2:0])) * RegTFallX * (255/ClkX)
16 - 31 : TFallX = 16 * (RegIOnX-(4xRegOffX[2:0])) * RegTFallX * (255/ClkX)
Enables high input mode for each [input-configured] IO
0 : OFF. VIH max = 3.6V and VCCx min = 1.2V
1 : ON. VIH max = 5.5V and VCCx min = 1.65V
Software reset register
Writing consecutively 0x12 and 0x34 will reset the device (same as POR).
Always reads 0.
29
World’s Lowest Voltage Level Shifting GPIO
with LED Driver and Keypad Engine
SX1507/SX1508/SX1509
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