CRD8900A-1 Cirrus Logic Inc, CRD8900A-1 Datasheet - Page 115
CRD8900A-1
Manufacturer Part Number
CRD8900A-1
Description
KIT EVAL FOR CS8900A
Manufacturer
Cirrus Logic Inc
Series
CrystalLAN™r
Datasheet
1.CS8900A-CQZ.pdf
(138 pages)
Specifications of CRD8900A-1
Main Purpose
Interface, Ethernet
Utilized Ic / Part
CS8900A
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Secondary Attributes
-
Embedded
-
Primary Attributes
-
Other names
598-1163
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DS271F5
SWITCHING CHARACTERISTICS
CS8900A
Crystal LAN™ Ethernet Controller
16-Bit Memory Read, IOCHRDY Not Used
SA [19:0], SBHE, CHIPSEL, active to MEMCS16 low
Address, SBHE, CHIPSEL active to MEMR active
MEMR low to SD valid
Address, SBHE, CHIPSEL hold after MEMR inactive
MEMR inactive to SD 3-state
MEMR inactive to active
16-Bit Memory Read, With IOCHRDY
MEMR low to IOCHRDY inactive
IOCHRDY low pulse width
IOCHRDY active to SD valid
SA [19:0],
SBHE,
CHIPSEL
SA [19:0],
SBHE,
CHIPSEL
MEMCS16
MEMR
IOCHRDY
SD [15:0]
MEMCS16
MEMR
SD [15:0]
Parameter
Figure 36. 16-Bit Memory Read, IOCHRDY not used
Figure 37. 16-Bit Memory Read, with IOCHRDY
t
CIRRUS LOGIC PRODUCT DATASHEET
MEMR1
t
MEMR2
t
MEMR8
Valid Address
Valid Address
t
MEMR7
t
MEMR3
(Continued)
t
MEMR9
Valid Data
t
MEMR4
Valid Data
Symbol
t
t
t
t
t
t
t
t
t
MEMR1
MEMR2
MEMR3
MEMR4
MEMR5
MEMR6
MEMR7
MEMR8
MEMR9
t
MEMR6
t
MEMR5
Min
125
10
35
0
-
-
-
-
-
IN or OUT of chip
IN or OUT of chip
DIRECTION:
DIRECTION:
IN
OUT
IN
OUT
OUT
IN
OUT
IN
OUT
Typ
30
35
-
-
-
-
-
-
-
Max
135
175
30
0
-
-
-
-
-
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
115
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