XC866_05 Datasheet, PDF(98/396 Page) Infineon Technologies AG – 8-Bit Single Chip Microcontroller

English

English German Russian Spanish Italian Polish Chinese Japanese Korean French Portuguese	Language :

XC866_05 Datasheet, PDF (98/396 Pages) Infineon Technologies AG – 8-Bit Single Chip Microcontroller

◁

XC866

Interrupt System

Field

Bits Type Description

FNMIPLL

1

rwh PLL NMI Flag

0 No PLL NMI occurred.

1 The PLL has lost the lock to the external

crystal.

FNMIFLASH- 2

TIMER

rwh Flash Timer NMI Flag

0 No Flash NMI occurred.

1 Flash Timer has overflowed.

FNMIOCDS

3

rwh OCDS NMI Flag

0 No OCDS NMI occurred.

1 JTAG-receiving or user interrupt requested in

monitor mode.

FNMIVDD

4

rwh VDD Prewarning NMI Flag

0 No VDD NMI occurred.

1 VDD is below the prewarning voltage level

(2.3 V).

FNMIVDDP

5

rwh VDDP Prewarning NMI Flag

0 No VDDP NMI occurred.

1 VDDP is below the prewarning voltage level

(4.0 V if the external power supply is 5.0 V).

FNMIECC

6

rwh ECC NMI Flag

0 No ECC error occurred.

1 ECC error has occurred.

0

7

r

Reserved

Returns 0 if read; should be written with 0.

Register NMISR can only be cleared by software or reset to the default value after the

power-on reset/hardware reset/brownout reset. The register value is retained on any

other reset such as watchdog timer reset or power-down wake-up reset. This allows the

system to detect what caused the previous NMI.

Userâs Manual

Interrupt System, V 0.5

5-18

V 0.2, 2005-01

▷