AT697F_14 datasheet(93/176 Pages) ATMEL

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AT697F

7703E–AERO–08/11

Table 33. Next Program Counters - nPC

Table 34. Watch Point Address Registers - ASR24, ASR26, ASR28 and ASR30

Address = %asr24, %asr26, %asr28, %asr30

waddr

r/w

r r/w

xxxx xxxx xxxx xxxx xxxx xxxx xxxx xx

31..2

waddr

Watchpoint Address

Defines the address range to be watched.

Hit on Instruction Fetch

If set, enables hit generation on instruction fetch.

Notes: – These TMR-protected registers can be safely read after power-up without prior initial-

ization. However, bits unaffected by the reset operation will have an undetermined

value.

– These non-priviledged registers are read and written using the RDASR and WRASR

instructions.

Bit Number

Mnemonic

Description

31..0

Program Counter

Contains the address of the instruction currently being executed by the IU.

When a trap occurs, it is saved into a local register (l1). When returning from the

trap, the local register is copied back.

31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9876

543

210

npc

0x00000004

Bit Number

Mnemonic

Description

31..0

npc

Next Program Counter

Holds the address of the next instruction to be executed by the IU (assuming a trap

does not occur).

When a trap occurs, it is saved into a local register (l2). When returning from the

trap, the local register is copied back.

31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9876

543

210

Bit Number

Mnemonic

Description

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