LH75401_LH75411_N NXP Semiconductors, LH75401_LH75411_N Datasheet - Page 31

• Manufacturer Part Number: LH75401_LH75411_N
• Description: The NXP BlueStreak LH75401/LH75411 family consists of two low-cost 16/32-bit System-on-Chip (SoC) devices
• Manufacturer: NXP Semiconductors

System-on-Chip
Vectored Interrupt Controller (VIC)
VIC, where hardware determines the interrupt priority
(see Table 11). The VIC is also where the appropriate
signal to the processor (IRQ or FIQ) is generated. The
processor services the interrupt as either a vectored
interrupt or a default-vectored interrupt.
• Seven external
• Twenty-three internal
• Two used as software interrupts.
and cleared individually, and individual status can be
determined. On reset, all interrupts are disabled.
Preliminary data sheet
All internal and external interrupts are routed to the
The VIC accepts inputs from 32 interrupt source lines:
All 32 interrupt source lines can be enabled, disabled,
POSITION
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
0
1
2
3
4
5
6
7
8
9
WDT
Not Used
ARM7 DBGCOMMRX
ARM7 DBGCOMMTX
Timer0 Combined
Timer1 Combined
Timer2 Combined
External Interrupt 0
External Interrupt 1
External Interrupt 2
External Interrupt 3
External Interrupt 4
External Interrupt 5
External Interrupt 6
Not Used
RTC_ALARM
ADC TSCIRQ (combined) Analog-to-Digital Converter
ADC BrownOutINTR
ADC PenIRQ
LCD
SSPTXINTR
SSPRXINTR
SSPRORINTR
SSPRXTOINTR
SSPINTR
UART1 UARTRXINTR
UART1 UARTTXINTR
UART1 UARTINTR
UART0 UARTINTR
UART2 Interrupt
DMA
CAN
DESCRIPTION
Table 11. Interrupt Channels
NXP Semiconductors
Rev. 01 — 16 July 2007
Watchdog Timer
Available as a software interrupt
Sourced by the ARM7TDMI-S Core
Sourced by the ARM7TDMI-S Core
Timer0
Timer1
Timer2
Sourced by the GPIO Block
Sourced by the GPIO Block
Sourced by the GPIO Block
Sourced by the GPIO Block
Sourced by the GPIO Block
Sourced by the GPIO Block
Sourced by the GPIO Block
Available as a software interrupt
Real Time Clock
Brown Out Detector
Analog-to-Digital Converter
LCD Controller
Synchronous Serial Port
Synchronous Serial Port
Synchronous Serial Port
Synchronous Serial Port
Synchronous Serial Port
UART1
UART1
UART1
UART0
UART2
DMA
CAN (LH75401)
Reserved (LH75411)
Software-generated interrupts use the same enabling
control as hardware-generated interrupts.
• 16 vectored interrupts
• 16 or more default-vectored interrupts.
to any of the 16 interrupt vectors. Any line not explicitly
assigned to an interrupt vector is processed as a
default-vectored interrupt. At reset, all 32 lines become
default-vectored interrupts.
IRQ (default) or FIQ interrupt. Vectored-interrupt
servicing is only available for IRQ interrupts.
The VIC also accepts software-generated interrupts.
The VIC provides 32 interrupts:
Any of the 32 interrupt source lines can be assigned
Each interrupt line can be explicitly identified as an
SOURCE
LH75401/LH75411
31