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Single-beat read access to fpm dram -83 – Motorola MPC8260 User Manual

Page 359

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MOTOROLA

Chapter 10. Memory Controller

10-83

Part III. The Hardware Interface

MxMR[OP] = 11. Figure 10-56 shows the Þrst locations addressed by the UPM, according
to the different services required by the DRAM.

Figure 10-68. Single-Beat Read Access to FPM DRAM

cst1

0

0

0

Bit 0

cst2

0

0

0

Bit 1

cst3

0

0

0

Bit 2

cst4

0

0

0

Bit 3

bst1

1

1

0

Bit 4

bst2

1

0

0

Bit 5

bst3

1

0

0

Bit 6

bst4

1

0

0

Bit 7

g0l0

Bit 8

g0l1

Bit 9

g0h0

Bit 10

g0h1

Bit 11

g1t1

Bit 12

g1t3

Bit 13

g2t1

Bit 14

g2t3

Bit 15

g3t1

Bit 16

g3t3

Bit 17

g4t1

Bit 18

g4t3

Bit 19

g5t1

Bit 20

g5t3

Bit 21

redo[0]

Bit 22

redo[1]

Bit 23

loop

0

0

0

Bit 24

exen

0

0

0

Bit 25

amx0

1

0

0

Bit 26

amx1

0

0

0

Bit 27

na

0

0

0

Bit 28

uta 0

0

1

Bit 29

todt

0

0

1

Bit 30

last

0

0

1

Bit 31

RSS

RSS+1

RSS+2

CLKIN

A

RD/WR

D

PSDVAL

CS1

BS

Row

Column 1

(CAS)

(RAS)