STMPE1601 STMicroelectronics, STMPE1601 Datasheet - Page 27

• Manufacturer Part Number: STMPE1601
• Description: 16-bit Enhanced Port Expander With Keypad And Pwm Controller Xpander Logic
• Manufacturer: STMicroelectronics

STMPE1601
INT_STA
Address:
Type:
Reset:
Description:
15
R
0
14
R
0
[15:9] ISR_msb
[8:0] IS[x]:
13
R
0
0x14, 0x15
R, R/W
0x00
The interrupt status register monitors the status of the interruption from a particular
interrupt source to the host. Regardless whether the INT_EN bits are enabled or not,
the INT_STA bits are still updated.
Interrupt status (where x = 8 to 0)
Read:
IE0: Wake-up Interrupt Status
IE1: Keypad controller interrupt status
IE2: Keypad controller FIFO overflow interrupt status
IE3: Reserved
IE4: Basic PWM controller 0 interrupt status
IE5: Basic PWM controller 1 interrupt status
IE6: Basic PWM controller 2 Interrupt status
IE7: Basic PWM controller 3 interrupt status
IE8: GPIO Controller Interrupt Status
Write: a write to a IS[x] bit with a value of ‘1’ will clear the interrupt and a write with a value of ‘0’
has no effect on the IS[x] bit.
ISR_msb
12
R
0
11
R
0
10
R
0
Interrupt status register
R
9
0
RW
IS8
8
0
7
0
-
-
6
0
-
-
RW
IS5
5
0
RW
IS4
4
0
ISR_lsb
RW
IS3
3
0
RW
IS2
2
0
Interrupt system
RW
IS1
1
0
IS0
RW
0
0
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