Table of Contents
Advertisement
5.3 Operation Timing
With this emulator system, ports P0 to P3 and P4
I/O timing will differ from that of the actual MCU. Use the following as a reference when using the
emulation pod.
(1) Operation Timing When Using the Evaluation MCU (M37641M8-XXXFS)
Table 5.2 Timing requirements and switching characteristics (Vcc = 5.0V, Ø = 12 MHz)
td (ø-AH)
tv (ø-AH)
td (ø-AL)
tv (ø-AL)
td (ø-WR)
tv (ø-WR)
td (ø-RD)
tv (ø-RD)
td (ø-DMA)
tv (ø-DMA)
tsu (RDY-ø)
th (ø-RDY)
tsu (HOLD-ø)
th (ø-HOLD)
td (ø-HLDAL)
td (ø-HLDAH) HLDA* "H" delay time
tsu (DB-ø)
th (ø-DB)
td (ø-DB)
tv (ø-DB)
td (ø-EDMA)
tv (ø-EDMA)
td (AH-WR)
td (AL-WR)
tv (WR-AH)
tv (WR-AL)
td (AH-RD)
td (AL-RD)
tv (RD-AH)
tv (RD-AL)
tsu (RDY-WR) Before WR* RDY setup time
th (WR-RDY)
tsu (RDY-RD) Before RD* RDY setup time
th (RD-RDY)
tsu (DB-RD)
th (RD-DB)
td (WR-DB)
tv (WR-DB)
tv (WR-EDMA) After WR* EDMA* delay time
tv (RD-EDMA) After RD* EDMA* delay time
Symbol
AB15 - AB8 delay time
AB15 - AB8 valid time
AB7 - AB0 delay time
AB7 - AB0 valid time
WR* delay time
WR* valid time
RD* delay time
RD* valid time
DMAOUT delay time
DMAOUT valid time
RDY setup time
RDY hold time
HOLD* setup time
HOLD* hold time
HLDA* "L" delay time
Data bus setup time
Data bus hold time
Data bus delay time
Data bus valid time
EDMA* delay time
EDMA* valid time
Before WR* AB15 - AB8 valid time
Before WR* AB7 - AB0 valid time
After WR* AB15 - AB8 valid time
After WR* AB7 - AB0 valid time
Before RD* AB15 - AB8 valid time
Before RD* AB7 - AB0 valid time
After RD* AB15 - AB8 valid time
After RD* AB7 - AB0 valid time
After WR* RDY hold time
After RD* RDY hold time
Before RD* data bus setup time
After RD* data bus hold time
Before WR* data bus delay time
After WR* data bus valid time
are connected via the emulation circuit. Therefore,
0
Item
Min.
21
21
13
0.5*tc(ø)-28
0.5*tc(ø)-30
0.5*tc(ø)-28
0.5*tc(ø)-30
27
27
13
10
( 49 / 68 )
Standard value
Actual MCU
Emulator
Max.
Min.
31
5
0
33
5
0
6
3
3
6
3
3
25
5
0
45
0
0
34
0
0
25
25
7
38
0
0
22
8
9
4
0
0.5*tc(ø)-33
0.5*tc(ø)-35
0
-5
0
-5
0.5*tc(ø)-33
0.5*tc(ø)-35
0
-5
0
-5
47
0
0
47
0
0
40
0
0
20
3
2
2
2
2
Unit
Max.
32
ns
ns
33
ns
ns
15
ns
ns
15
ns
ns
25
ns
ns
ns
ns
ns
ns
25
ns
25
ns
ns
ns
23
ns
ns
16
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
25
ns
ns
ns
ns
Advertisement
Table of Contents
