IDT77V400 Integrated Device Technology, IDT77V400 Datasheet - Page 16

• Manufacturer Part Number: IDT77V400
• Description: 1.24 Gbps Switching Memory **not Recommended For New Designs**
• Manufacturer: Integrated Device Technology

32
40
50
16
25
33
32
50
Pin Controls
IDT77V011
(I/O)
(O)
(O)
(O)
(I)
Add/Data[7:0]
SYSCLK
4
4
4
8
8
8
8
8
801A
PHYCS
ALE
RD
t
PALE
32
40
50
16
25
33
32
50
0
t
ALPW
Software Reset (In-Stream
SYSRST (external pin)
PHYRST (register bit)
Override
Pin
Configuration
t
AAL
8
8
8
8
8
8
16
16
Table 8 Clock Speed verses Bandwidth Table
Address
Figure 12 Utility Bus Read Operation
Table 6 Pin Configuration Table
0 - 1
t
t
ALA
PPHY
16
20
25
16
25
33
16
25
Table 7 Reset Table
TM
t
)
ALR
16 of 43
X
X
0
Calculated Bandwidth of UTOPIA Interface (cell rate in Mbps)
125.6
157
196.3
125.6
196.3
259.1
242.3
378.6
Enables writing to pin configurable registers during normal
operation. "0" pin configurable registers are read only, "1" pin
configurable registers are read/write registers
t
RDPW
X
X
X
Read Data from PHY
t
DRS
113.8
142.2
177.8
113.8
177.8
234.7
235
367.2
t
DRH
March 15, 2001
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