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ADP5589CP-EVALZ Datasheet(PDF) 23 Page - Analog Devices

Part No. ADP5589CP-EVALZ
Description  Keypad Decoder and I/O Expansion
Download  52 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

ADP5589CP-EVALZ Datasheet(HTML) 23 Page - Analog Devices

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Data Sheet
ADP5589
Rev. B | Page 23 of 52
DETAILED REGISTER DESCRIPTIONS
Note: N/A throughout this section means not applicable.
Note: All registers default to 0000 0000 unless otherwise specified.
ID Register 0x00
Table 7. ID Bit Descriptions
Bits
Name
R/W
Description
[7: 4]
MAN_ID
R
Manufacturer ID, default = 0001.
[3:0]
REV_ID
R
Rev ID.
Default = 0001 XXXX
INT_STATUS Register 0x01
Table 8. INT_STATUS Bit Descriptions
Bits
Name
R/W
Description
[7: 6]
N/A
Reserved.
5
LOGIC2_INT
R/W
0 = no interrupt.
1 = interrupt due to a general Logic 2 condition.
Write a 1 to this bit to clear it.
4
LOGIC1_INT
R/W
0 = no interrupt.
1 = interrupt due to a general Logic 1 condition.
Write a 1 to this bit to clear it.
3
LOCK_INT
R/W
0 = no interrupt.
1 = interrupt due to a lock/unlock condition.
The user can read LOCK_STAT (0x02[5]) to determine if LOCK_INT is due to a lock or unlock event.
If LOCK_STAT = 1, LOCK_INT is due to a lock event.
If LOCK_STAT = 0, LOCK_INT is due to an unlock event.
Write a 1 to this bit to clear it.
If lock mode is enabled via the software bit LOCK_EN (0x37[0]), a LOCK_INT is not generated
because the processor knows it just enabled lock mode.
If lock mode is disabled (while locked) via the software bit LOCK_EN, a LOCK_INT is not generated
because the processor knows it just disabled lock mode.
2
OVRFLOW_INT
R/W
0 = no interrupt.
1 = interrupt due to an overflow condition.
Write a 1 to this bit to clear it.
1
GPI_INT
R/W
0 = no interrupt.
1 = interrupt due to a general GPI condition.
This bit is not set by a GPI that has been configured to update the FIFO and event count.
Write a 1 to this bit to clear it.
This bit cannot be cleared until all GPI_x_INT bits are cleared.
0
EVENT_INT
R/W
0 = no interrupt.
1 = interrupt due to key event (press/release), GPI event (GPI programmed for FIFO updates), or
Logic 1/Logic 2 event (programmed for FIFO updates).Write a 1 to this bit to clear it.
Status Register 0x02
Table 9. Status Bit Descriptions
Bits
Name
R/W
Description
7
LOGIC2_STAT
R
0 = output from Logic Block 2. (LY2) is low.
1 = output from Logic Block 2. (LY2) is high.
6
LOGIC1_STAT
R
0 = output from Logic Block 1 (LY1) is low.
1 = output from Logic Block 1 (LY1) is high.
5
LOCK_STAT
R
0 = unlocked.
1 = locked.
[4:0]
EC[4:0]
R
Event count value. Indicates how many events are currently stored on the FIFO.


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