ADP5588-EVALZ Analog Devices Inc, ADP5588-EVALZ Datasheet - Page 21

• Manufacturer Part Number: ADP5588-EVALZ
• Description: Column Keypad Scanner & GPIO Port Expand
• Manufacturer: Analog Devices Inc

Specifications of ADP5588-EVALZ

• Main Purpose: Interface, GPIO Expander
• Embedded: No
• Utilized Ic / Part: ADP5588
• Primary Attributes: 8-Bit 18-Port GPIO Expander
• Secondary Attributes: I²C Interface
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

COMPARATOR REGISTER DESCRIPTIONS
Table 37. CMP_CFG_STAT—Register 0x30 (Comparator Configuration and Status Register)
Field
CMP2_L3_OUT
CMP2_L2_OUT
CMP1_L3_OUT
CMP1_L2_OUT
CMP2_IEN
CMP1_IEN
CMP2_EN
CMP1_EN
Table 38. CMP_CONFG_SENS1—Register 0x31 (Sensor 1 Comparator Configuration Register)
Field
FILT (2-0)
FORCE_RD
L3_EN
L2_EN
1
When the software forces a conversion, the state machine clears the forced bit after the conversion is done and the proper registers have been updated.
Bit
[7:6]
[5:3]
2
1
0
Bit
7
6
5
4
3
2
1
0
Programs the number of consecutive measurements required to transition the L2 and L3 levels.
1: Enables the L3 comparator for Sensor 1 input.
1: Enables the L2 comparator for Sensor 1 input.
Description
Not used.
FILT
000
001
010
011
100
101
110
111
1: Forces a read of the light sensor; reset by the internal state machine after conversion is complete and
L2_OUT and L3_OUT are valid.
0: Disables the L3 comparator for Sensor 1 input.
0: Disables the L2 comparator for Sensor 1 input.
Note that the L3 comparator has priority over the L2 comparator.
Description
Sensor 2 Comparator L3 output.
0: Ambient light is greater than Level 3 (dark).
1: L3_CMP has detected a change in ambient light from Level 2 (office) to L3 (dark).
Sensor 2 Comparator L2 output.
0: Ambient light is greater than Level 2 (office).
1: L2_CMP has detected a change in ambient light from Level 1 (outdoor) to L2 (office).
Sensor 1 Comparator L3 output.
0: Ambient light is greater than Level 3 (dark).
1: L3_CMP has detected a change in ambient light from Level 2 (office) to L3 (dark).
Sensor 1 Comparator L2 output.
0: Ambient light is greater than Level 2 (office).
1: L2_CMP has detected a change in ambient light from Level 1 (outdoor) to L2 (office).
Sensor 2 comparator interrupt.
0: Interrupt disabled.
1: Interrupt enabled.
Sensor 1 comparator interrupt.
0: Interrupt disabled.
1: Interrupt enabled.
Sensor 2 comparator input.
0: Input disabled.
1: Input enabled.
Sensor 1 comparator input.
0: Input disabled.
1: Input enabled.
Rev. B | Page 21 of 28
1
Number Required
1
2
4
8
16
32
64
128
Approximate Time (sec)
0.08
0.16
0.32
0.64
1.28
2.56
5.12
10.24
ADP5588