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4 the ram array, The ram array -69, Upm signals timing example -69 – Motorola MPC8260 User Manual

Page 345

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MOTOROLA

Chapter 10. Memory Controller

10-69

Part III. The Hardware Interface

Figure 10-60. UPM Signals Timing Example

10.6.4 The RAM Array

The RAM array for each UPM is 64 locations deep and 32 bits wide, as shown in
Figure 10-61. The signals at the bottom of Figure 10-61 are UPM outputs. The selected CS
is for the bank that matches the current address. The selected BS is for the byte lanes read
or written by the access.

CSx

GPL1

GPL2

CST1

CST2

CST3

CST4

CST1

CST2

CST3

CST4

G1T1

G1T3

Word 1

Word 2

CLKIN

T1

T2

T3

T4

G1T1

G1T3

G2T1

G2T3

G2T1

G2T3