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32C85 Datasheet(PDF) 69 Page - Renesas Technology Corp

Part # 32C85
Description  SINGLE-CHIP 16/32-BIT CMOS MICROCOMPUTER
PDF  92 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

32C85 Datasheet(HTML) 69 Page - Renesas Technology Corp

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Page 69
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5. Electrical Characteristics (M32C/85)
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Table 5.41 Memory Expansion Mode and Microprocessor Mode
(when accessing an external memory space with the multiplexed bus)
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td(DB – WR) =
10 X m
9
– 25
[ns] (if external bus cycle is a
φ + bφ, m=(b+2)-1)
th(RD – AD) =
f(BCLK) X 2
10 9
– 10
[ns]
th(WR – AD) =
f(BCLK) X 2
10 9
– 10
[ns]
th(RD – CS) =
f(BCLK) X 2
10 9
–10
[ns]
th(WR – CS) =
f(BCLK) X 2
10 9
– 10
[ns]
th(WR – DB) =
f(BCLK) X 2
10 9
– 20
[ns]
td(AD – ALE) =
f(BCLK) X 2
10 x n
9
– 20
[ns] (if external bus cycle is a
φ + bφ, n=a)
th(ALE – AD) =
f(BCLK) X 2
10 x n
9
– 10
[ns] (if external bus cycle is a
φ + bφ, n=a)
f(BCLK) X 2
NOTES:
1. Values can be obtained by the following equations, according to BLCK frequency.
2. Values can be obtained by the following equations, according to BLCK frequency and external bus cycles.
3. Values can be obtained by the following equations, according to BLCK frequency and external bus cycles.
4. Values can be obtained by the following equations, according to BLCK frequency and external bus cycles.
5. tc ns is added when recovery cycle is inserted.
See Figure 5.2



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