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SH7041A Fiches technique(PDF) 767 Page - Renesas Technology Corp

No de pièce SH7041A
Description  Renesas 32-Bit Single-Chip RISC Microprocessor SuperH RISC engine Family/SH7040 Series(CPU Core SH-2)
PDF  923 Pages
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Fabricant  RENESAS [Renesas Technology Corp]
Site Internet  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

SH7041A Fiches technique(HTML) 767 Page - Renesas Technology Corp

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Table 22.12 Commands of the Programmer Mode
Number
First Cycle
Second Cycle
Command Name
of Cycles Mode
Address Data
Mode
Address Data
Memory read mode
1+n
write
X
H'00
read
RA
Dout
Auto-program mode
129
write
X
H'40
write
WA
Din
Auto-erase mode
2
write
X
H'20
write
X
H'20
Status read mode
2
write
X
H'71
write
X
H'71
Notes: 1. In auto-program mode, 129 cycles are required for command writing by a simultaneous
128-byte write.
2. In memory read mode, the number of cycles depends on the number of address write
cycles (n).
22.11.3
Memory Read Mode
Table 22.13 AC Characteristics in Transition to Memory Read Mode
(Conditions: V
CC = 5.0 V ±10%, VSS = 0 V, Ta = 25°C ±5°C)
Item
Symbol
Min
Max
Unit
Notes
Command write cycle
t
nxtc
20
µs
CE hold time
t
ceh
0ns
CE setup time
t
ces
0ns
Data hold time
t
dh
50
ns
Data setup time
t
ds
50
ns
Write pulse width
t
wep
70
ns
WE rise time
t
r
30
ns
WE fall time
t
f
30
ns



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