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Interrupt Module (S12SINTV1)
MC9S12VRP Family Reference Manual Rev. 1.3
238
NXP Semiconductors
•
2–58 I bit maskable interrupt vector requests (at addresses vector base + 0x0082–0x00F2).
•
I bit maskable interrupts can be nested.
•
One X bit maskable interrupt vector request (at address vector base + 0x00F4).
•
One non-maskable software interrupt request (SWI) or background debug mode vector request (at
address vector base + 0x00F6).
•
One non-maskable unimplemented op-code trap (TRAP) vector (at address vector base + 0x00F8).
•
Three system reset vectors (at addresses 0xFFFA–0xFFFE).
•
Determines the highest priority interrupt vector requests, drives the vector to the bus on CPU
request
•
Wakes up the system from stop or wait mode when an appropriate interrupt request occurs.
7.1.3
Modes of Operation
•
Run mode
This is the basic mode of operation.
•
Wait mode
In wait mode, the clock to the INT module is disabled. The INT module is however capable of
waking-up the CPU from wait mode if an interrupt occurs. Please refer to
for details.
•
Stop Mode
In stop mode, the clock to the INT module is disabled. The INT module is however capable of
waking-up the CPU from stop mode if an interrupt occurs. Please refer to
for details.
•
Freeze mode (BDM active)
In freeze mode (BDM active), the interrupt vector base register is overridden internally. Please
refer to
Section 7.3.1.1, “Interrupt Vector Base Register (IVBR)”
for details.
7.1.4
Block Diagram
shows a block diagram of the INT module.
1. The vector base is a 16-bit address which is accumulated from the contents of the interrupt vector base register (IVBR, used
as upper byte) and 0x00 (used as lower byte).
Summary of Contents for MC9S12VRP64
Page 16: ...MC9S12VRP Family Reference Manual Rev 1 3 16 NXP Semiconductors ...
Page 46: ...Device Overview S12VRP Series MC9S12VRP Family Reference Manual Rev 1 3 46 NXP Semiconductors ...
Page 236: ...S12S Debug Module S12DBGV2 MC9S12VRP Family Reference Manual Rev 1 3 236 NXP Semiconductors ...
Page 244: ...Interrupt Module S12SINTV1 MC9S12VRP Family Reference Manual Rev 1 3 244 NXP Semiconductors ...
Page 358: ...Timer Module TIM16B2CV3 MC9S12VRP Family Reference Manual Rev 1 3 358 NXP Semiconductors ...
Page 436: ...Supply Voltage Sensor BATSV2 MC9S12VRP Family Reference Manual Rev 1 3 436 NXP Semiconductors ...
Page 528: ...NVM Electrical Parameters MC9S12VRP Family Reference Manual Rev 1 3 528 NXP Semiconductors ...
Page 530: ...Package Information MC9S12VRP Family Reference Manual Rev 1 3 530 NXP Semiconductors ...
Page 531: ...Package Information MC9S12VRP Family Reference Manual Rev 1 3 NXP Semiconductors 531 ...
Page 532: ...Package Information MC9S12VRP Family Reference Manual Rev 1 3 532 NXP Semiconductors ...