STMPE1601TBR STMICROELECTRONICS [STMicroelectronics], STMPE1601TBR Datasheet - Page 24

• Manufacturer Part Number: STMPE1601TBR
• Description: 16-bit enhanced port expander with keypad and PWM controller Xpander Logic
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

Interrupt system
9.1.1
INT_CTRL
Address:
Buffer:
Reset:
Description:
24/58
15
R
0
14
R
0
Interrupt latency
When the generation of interrupts by the GPIO as input is enabled, the latency (time taken
from actual transition at GPIO to time of INT pin assertion) is shown in the following table:
Table 17.
[15:3] RESERVED
13
R
[2] IC2
[1] IC1: Output Interrupt Type
[0] IC0: Global Interrupt Mask bit
0
0x10, 0x11
R, R/W
0x00
The interrupt control register is used to configure the interrupt controller. It has a
global enable interrupt mask bit that controls the interruption to the host.
‘0’ = Level interrupt
‘1’ = Edge interrupt
When this bit is written a ‘1’, it will allow interruption to the host. If it is written with a ‘0’, then, it
disables all interruption to the host. Writing to this bit does not affect the INT_EN_MASK value.
INT_CTRL_msb
12
R
0
Interrupt latency
State of operation
11
R
0
Hibernation
Active
Sleep
10
R
0
Interrupt control register
Reserved
R
9
0
R
8
0
R
7
0
R
6
0
R
5
0
Interrupt latency
INT_CTRL_lsb
R
4
0
10 uS max
5 uS max
2 uS max
R
3
0
RW
IC2
2
0
STMPE1601
IC1
RW
1
0
IC0
RW
0
0