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IDT79R3041-20PFG

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P30P31-P33P34-P34
25
IDT79R3041 INTEGRATED RISController FOR LOW COST SYSTEMS COMMERCIAL TEMPERATURE RANGE
Figure 16(a). Quad Word Read to 16-bit wide Memory Port
PhiClk
SysClk
Rd
A/D(31:0)
ALE
Addr(3:1)
Addr
DataEn
RdCEn
'000'
Stall Stall Stall
Ack
Last
Diag
Start
Read
Extended
Address
Sample
Data
Run/
Stall
Cached
t7
t14
t8
t9
t12
t17
t17
t18
t15
Halfword 0
t2a
t1a
t14
Halfword 1
t2a
t1a
Halfword 2
t2a
t1a
Halfword 3
t2a
t1a
'001' '010' '011'
t1
t2
t1
t2
t1
t2
t16 t16 t16
Sample
Data
Sample
Data
Sample
Data
RdCEn RdCEn RdCEn
I/D
t16
ExtDataEn
t48
Burst
t7
MemStrobe
IOStrobe
t50
t47
t51
t50
t51 t51
t16
'100'
t51
t1
t2
BE16(1:0)
'00' '00' '00' '00'
t16 t16 t16 t16
'00'
RdCEn
Stall Stall Stall Stall
t1
t2
RdCEn
t16
t50 t50 t50
t18
t12
t7a
2905 drw 20
26
IDT79R3041 INTEGRATED RISController FOR LOW COST SYSTEMS COMMERCIAL TEMPERATURE RANGE
Figure 16(b). End of Quad Word read from 16-bit Wide Memory Port
PhiClk
SysClk
Rd
A/D(31:0)
ALE
Addr(3:1)
DataEn
RdCEn
'100'
Stall
Refill/
Fixup
Ack
Last
Diag
Sample
Data
New
Transaction
Ack/
RdCEn
t1
t2
t15
Halfword 4
t2a
t1a
t14
t15
Halfword 5
t2a
t1a
Halfword 6
t2a
t1a
Halfword 7
t2a
t1a
'101' '110' '111'
t1
t2
t1
t2
t1
t2
Refill/
Stream/
Fixup
Refill/
Stream/
Fixup
Refill/
Stream/
Fixup
t16 t16 t16
Sample
Data
Sample
Data
Sample
Data
RdCEn RdCEn RdCEn
Word 0 Word 1 Word 2 Word 3
Stall
I/D
t16
ExtDataEn
t49
Burst
t7b
MemStrobe
IOStrobe
t17
t50
t51
t50
t51
t50
t51
BE16(1:0)
'00' '00' '00' '00'
t16 t16 t16 t16
t51
t15
2905 drw 21
27
IDT79R3041 INTEGRATED RISController FOR LOW COST SYSTEMS COMMERCIAL TEMPERATURE RANGE
SysClk
Wr
A/D(31:0)
ALE
Addr(3:2)
Addr
BE
Word Address
Ack
WrNear
Start
Write
Extended
Address
Data Out/
Ack?
Ack? Negate
Write
New
Transfer
Ack
Data Output
t
7a
t
14
t
8
t
7
t
1
t
2
t
15
t
14
t
19
t
16
ExtDataEn
t
49
t
11
Last
t
15
MemStrobe
IOStrobe
t
47
t
50
t
16
t
15
t
51
t
7
2905 drw 22
t
7b
Figure 17. Basic Write to 32-bit Memory Port
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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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