lm8328tmx National Semiconductor Corporation, lm8328tmx Datasheet - Page 31

• Manufacturer Part Number: lm8328tmx
• Description: Mobile I/o Companion Supporting Keyscan, I/o Expansion Pwm, And Access.bus Host Interface
• Manufacturer: National Semiconductor Corporation

13.3.11 IRQST - Global Interrupt Status Register
Register - Name
Bit - Name
(reserved)
GPIOIRQ
PORIRQ
TIM2IRQ
TIM1IRQ
TIM0IRQ
KBDIRQ
IRQST
Address
0x91
Bit
5:4
7
6
3
2
1
0
TABLE 50. IRQST - Global Interrupt Status Register
Default
Type
0x1
0x0
0x0
0x0
0x0
0x0
R
Returns the interrupt status from various on-chip function blocks. If
any of the bits is set and an IRQN line is configured, the IRQN line is
asserted active
Supply failure on VCC.
Also power-on is considered as an initial supply failure. Therefore,
after power-on, the bit is set.
0: no failure recorded
1: Failure, device was completely reset and requires re-programming.
Keyboard interrupt (further key selection in keyboard module)
0: inactive
1: active
(reserved)
Timer2 expiry (CDIRQ or CYCIRQ)
0: inactive
1: active
Timer1 expiry (CDIRQ or CYCIRQ)
0: inactive
1: active
Timer0 expiry (CDIRQ or CYCIRQ)
0: inactive
1: active
GPIO interrupt (further selection in GPIO module)
0: inactive
1: active
31
Register Function
Bit Function
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