Renesas M3062PT2-EPB 用户手册
M3062PT2-EPB User’s Manual
4. Hardware Specifications
REJ10J0868-0200 Rev.2.00 January 16, 2006
4.2 Access Timing
Because this product emulates some ports, access timings are different from those of the actual MCUs. Chapters 4.2.1 and
4.2.2 describe the access timing using this product.
4.2.1 Operation Timing of Memory Expansion Mode and Microprocessor Mode (Vcc1=Vcc2=5V)
(1) Separate Bus Timing
Table 4.2 and Figure 4.1 show the bus timing in memory expansion mode and microprocessor mode.
Table 4.2 Memory expansion mode and microprocessor mode (3-wait, accessing external area)
4.2.2 describe the access timing using this product.
4.2.1 Operation Timing of Memory Expansion Mode and Microprocessor Mode (Vcc1=Vcc2=5V)
(1) Separate Bus Timing
Table 4.2 and Figure 4.1 show the bus timing in memory expansion mode and microprocessor mode.
Table 4.2 Memory expansion mode and microprocessor mode (3-wait, accessing external area)
Actual MCU
[ns]
This product
[ns]
Symbol Item
Min. Max. Min. Max.
td(BCLK-AD)
Address output delay time
25
See left
th(BCLK-AD)
Address output hold time (BCLK standard)
4
See left
th(RD-AD)
Address output hold time (RD standard)
0
-4
th(WR-AD)
Address output hold time (WR standard)
(*2)
(*3)
td(BCLK-CS)
Chip-select output delay time
25
See left
th(BCLK-CS) Chip-select
output
hold
time (BCLK standard)
4
See left
td(BCLK-ALE)
ALE signal output delay time
25
See left
th(BCLK-ALE)
ALE signal output hold time
-4
See left
td(BCLK-RD)
RD signal output delay time
25
See left
th(BCLK-RD)
RD signal output hold time
0
See left
td(BCLK-WR)
WR signal output delay time
25
See left
th(BCLK-WR)
WR signal output hold time
0
See left
td(BCLK-DB)
Data output delay time (BCLK standard)
40
See left
th(BCLK-DB)
Data output hold time (BCLK standard)
4
See left
td(DB-WR)
Data output delay time (WR standard)
(*1)
See left
th(WR-DB)
Data output hold time (WR standard)
(*2)
See left
*1 Calculated by the following formula according to the frequency of BCLK.
(
)
40
)
(
10
5
.
0
9
−
×
−
BCLK
f
n
[ns] n: "3" for 3 wait
*2 Calculated by the following formula according to the frequency of BCLK.
)
(
10
5
.
0
9
BCLK
f
×
[ns]
*3 Calculated by the following formula according to the frequency of BCLK.
6
)
(
10
5
.
0
9
−
×
BCLK
f
[ns]
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