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Figure 3-12 – Freescale Semiconductor ColdFire MCF52210 User Manual

Page 55

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ColdFire Core

MCF52211 ColdFire® Integrated Microcontroller Reference Manual, Rev. 2

Freescale Semiconductor

3-11

Figure 3-12. V2 OEP Embedded-Load Part 1

Figure 3-13. V2 OEP Embedded-Load Part 2

For register-to-memory (store) operations, the stage functions (DS/OC, AG/EX) are effectively performed
simultaneously allowing single-cycle execution. See

Figure 3-14

where the effective address is of the form

x = (d16,Ax), i.e., a 16-bit signed displacement added to a base register Ax.

Operand Execution Pipeline

DSOC

AGEX

Opword

Extension 1

Extension 2

Core Bus

Read Data

Core Bus
Address

Core Bus
Write

RGF

Data

Ay

d16

y

Operand Execution Pipeline

DSOC

AGEX

Opword

Extension 1

Extension 2

Core Bus

Read Data

Core Bus
Address

Core Bus
Write

RGF

Data

Rx

new Rx

y

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