ARM ARM7TDMI Datenblatt PDF herunterladen (Seite 14)

Introduction

ARM7TDMI Data Sheet

ARM DDI 0029E

1-6

Open Access

1.5 ARM7TDMI Functional Diagram

Figure 1-3: ARM7TDMI functional diagram

LOCK

A[31:0]

ABORT

Memory

Management

nOPC

nCPI

CPA

CPB

Coprocessor

Interface

nTRANS

Memory

Interface

Interface

D[31:0]

TCK

TMS

TDI

nTRST

Boundary

Scan

TDO

Processor

Mode

nRW

nMREQ

SEQ

BL[3:0]

MAS[1:0]

APE

TBIT

Processor

State

nM[4:0]

ARM7TDMI

DIN[31:0]

DOUT[31:0]

TAPSM[3:0]

IR[3:0]

Boundary Scan

TCK1

TCK2

11

Control Signals

nTDOEN

SCREG[3:0]

ABE

ALE

nIRQ

nFIQ

Bus

Interrupts

ISYNC

nRESET

MCLK

nWAIT

Clocks

VDD

VSS

Power

DBGRQ

BREAKPT

DBGACK

nEXEC

Debug

Controls

EXTERN 1

DBE

TBE

EXTERN 0

nENOUT

nENIN

ECLK

DBGEN

APE

HIGHZ

BIGEND

BUSEN

RANGEOUT0

RANGEOUT1

DBGRQI

COMMRX

COMMTX

nENOUTI

ECAPCLK

BUSDIS

1 2 ... 9 10 11 12 13 14 15 16 17 18 19 ... 41 42

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