Renesas M3062PT-EPB User Manual

Page 60

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Vcc1 = Vcc2 = 3 V

5.3 Operation Timing of Memory Expansion Mode and Microprocessor Mode (3 V)

(1) Separate Bus Timing

Table 5.5 and Figure 5.4 show the bus timing in memory expansion mode and microprocessor mode.

Table 5.5 Memory expansion mode and microprocessor mode (3-wait, accessing external area)

-40 [ns]

n: "3" for 3-wait

(

n

- 0.5)x10

9

f (BCLK)

[ns]

0.5x10

9

f (BCLK)

Symbol

Item

Actual MCU

[ns]

This product

[ns]

Min.

Max.

td(BCLK-AD)

th(BCLK-AD)

th(RD-AD)

th(WR-AD)

td(BCLK-CS)

th(BCLK-CS)

td(BCLK-ALE)

th(BCLK-ALE)

td(BCLK-RD)

th(BCLK-RD)

td(BCLK-WR)

th(BCLK-WR)

td(BCLK-DB)

th(BCLK-DB)

td(DB-WR)

th(WR-DB)

Address output delay time

Address output hold time (BCLK standard)

Address output hold time (RD standard)

Address output hold time (WR standard)

Chip-select output delay time

Chip-select output hold time (BCLK standard)

ALE signal output delay time

ALE signal output hold time

RD signal output delay time

RD signal output hold time

WR signal output delay time

WR signal output hold time

Data output delay time (BCLK standard)

Data output hold time (BCLK standard)

Data output delay time (WR standard)

Data output hold time (WR standard)

4

0

(*2)

4

-4

0

0

4

(*1)

(*2)

Max.

30

30

30

30

30

40

Min.

*1 Calculated by the following formula according to the frequency of BCLK.

*2 Calculated by the following formula according to the frequency of BCLK.

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