LPC2917 datasheet(51/68 Pages) PHILIPS

51 / 68 page

LPC2917_19_1

Preliminary data sheet

Rev. 1.01 — 15 November 2007

51 of 68

NXP Semiconductors

LPC2917/19

ARM9 microcontroller with CAN and LIN

Interrupt-request masking is performed individually per interrupt target by comparing the

priority level assigned to a specific interrupt request with a target-specific priority

threshold. The priority levels are defined as follows:

• Priority level 0 corresponds to ‘masked’ (i.e. interrupt requests with priority 0 never

lead to an interrupt)

• Priority 1 corresponds to the lowest priority

• Priority 15 corresponds to the highest priority

Software interrupt support is provided and can be supplied for:

• Testing RTOS interrupt handling without using device-specific interrupt service

routines

• Software emulation of an interrupt-requesting device, including interrupts

8.9.3 VIC pin description

The VIC module in the LPC2917/19 has no external pins.

8.9.4 VIC clock description

The VIC is clocked by CLK_SYS_VIC, see Section 7.2.2.

Limiting values

Table 28.

Limiting values

In accordance with the Absolute Maximum Rating System (IEC 60134).

Symbol

Parameter

Conditions

Min

Max

Unit

Supply pins

Ptot

Total power dissipation.

[1] -1

VDD(CORE)

Core supply voltage.

−0.5

+2.0

VDD(OSC_PLL)

Oscillator and PLL supply

voltage.

−0.5

+2.0

VDD(ADC3V3)

3.3 V ADC supply voltage.

−0.5

+4.6

VDD(IO)

I/O digital supply voltage.

−0.5

+4.6

IDD

Supply current.

Average value per supply

pin.

[2] -98

ISS

Ground current.

Average value per ground

pin.

[2] -98

Input pins and I/O pins

VXIN_OSC

Voltage on pin XIN_OSC.

−0.5

+2.0

VXIN_RTC

Voltage on pin XIN_RTC.

−0.5

+2.0

VI(IO)

I/O input voltage.

[3][4][5]

−0.5

VDD(IO) +3.0

VI(ADC)

ADC input voltage.

I/O port 0.

[4][5]

−0.5

VDD(ADC3V3) +0.5

VVREFP

Voltage on pin VREFP.

−0.5

+3.6

VVREFN

Voltage on pin VREFN.

−0.5

+3.6

II(ADC)

ADC input current.

Average value per input pin.

[2] -35

Output pins and I/O pins configured as output

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