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IDT79R3041-20PFG

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P30P31-P33P34-P34
28
IDT79R3041 INTEGRATED RISController FOR LOW COST SYSTEMS COMMERCIAL TEMPERATURE RANGE
SysClk
Wr
A/D(31:0)
ALE
Addr(3:0)
Addr
Ack
'nnnn'
Last
Start
Write
Extended
Address
New
Transaction
Ack
t
7
t
14
t
8
t
9
t
1
t
2
t
19
t
15
t
14
'nnnn+1'
t
1
t
16
Ack
t
16
ExtDataEn
t
49
t
48
WrNear
t
7
MemStrobe
IOStrobe
t
50
t
47
t
51
t
50
t
2
t
7b
t
16
'nnnn+2'
t
16
t
50
t
1
t
2
Ack
t
51
Byte N
t
19
t
19
Byte N+1 Byte N+2
Negate
Write
t
15
t
51
t
15
t
52
t
52
t
7a
2905 drw 23
Figure 18. Tri-Byte Mini-burst Write to 8-bit Port
29
IDT79R3041 INTEGRATED RISController FOR LOW COST SYSTEMS COMMERCIAL TEMPERATURE RANGE
SysClk
BusReq
BusGnt
A/D(31:0)
Addr(3:0)
Diag
Rd
Wr
ALE
Burst/
WrNear
t
1
t
2
t
5
t
3
Last,
BE16(1:0),
MemStrobe
IOStrobe
t
45
ExtDataEn
TC
2905 drw 24
Figure 19. Request and Relinquish of R3041 Bus to External Master
30
IDT79R3041 INTEGRATED RISController FOR LOW COST SYSTEMS COMMERCIAL TEMPERATURE RANGE
SysClk
BusReq
BusGnt
A/D(31:0)
Addr(3:0)
Diag
Rd
Wr
ALE
Burst/
WrNear
t
1
t
2
t
6
t
4
Last,
BE16(1:0)
MemStrobe
IOStrobe
TC
ExtDataEn
t
46
2905 drw 25
Figure 20. R3041 Regaining Bus Mastership
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P30P31-P33P34-P34

IDT79R3041-20PFG

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Buy IDT79R3041-20PFG
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Description:
IC MPU MIPS-I 20MHZ 100TQFP
Lifecycle:
New from this manufacturer.
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