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| 型號(hào)： | MT5TL8L32T-40IT |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | SPECIALTY MICROPROCESSOR CIRCUIT, PQFP100 |
| 封裝： | TQFP-100 |
| 文件頁(yè)數(shù)： | 23/31頁(yè) |
| 文件大?。?/td> | 584K |
| 代理商： | MT5TL8L32T-40IT |
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MUAC Routing Coprocessor
2002, Micron Technology Inc.
DS-MUAC RCP 8K and 4K.fm - Rev March/13/02/ 02:20 PM
3
ADVANCE
Melody Routing Coprocessor
When a database location is deleted, the Validity bit
for that entry is reset, and the index of the location is
driven onto the Active Address bus. This simple mecha-
nism allows easy maintenance of the tables in both the
database and the external RAM.
The Melody RCP supports simple daisy chained
vertical cascading that serves to prioritize multiple
devices and provides system-level match and full
indication. If the slight timing overhead associated with
the daisy chain is unacceptable, the Melody RCP is
designed to facilitate external prioritization across
multiple devices.
An Melody RCP can be used to process both IPv4
CIDR and MAC addresses in the same device. For layer 2
applications, the MAC addresses are processed in binary
mode, and the Melody RCP looks for an exact match.
PIN DESCRIPTIONS
Signal names that end with “#” are active LOW. All
signals are 3.3V CMOS level. Never leave inputs floating.
The CAM architecture draws large currents during
compare operations, mandating the use of good layout
and bypassing techniques. Refer to the Electrical
Characteristics section for more information.
Figure 2. Pin Assignments
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
81
31
10 0
99
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
32
TCLK
TMS
TDI
DQ0
DQ1
DQ2
DQ3
VDD
DQ4
DQ5
DQ6
DQ7
VSS
DQ8
DQ9
DQ10
DQ11
VDD
DQ12
DQ13
DQ14
DQ15
VSS
AC11
AC10
AC9
AC8
AC7
AC6
VDD
AC5
AC4
AC3
AC2
AC1
AC0
TDO
AA12/NC*
8
0
7
9
7
8
7
6
7
5
7
4
7
3
7
2
7
1
7
0
6
9
6
8
6
7
6
5
6
4
6
3
6
2
6
1
6
0
5
9
5
8
5
7
5
6
5
4
5
3
5
2
5
1
D
Q
1
6
D
Q
1
7
D
Q
1
8
D
Q
1
9
V
D
Q
2
0
D
Q
2
1
D
Q
2
D
Q
2
3
V
S
D
Q
2
4
D
Q
2
5
D
Q
2
6
D
Q
2
7
V
D
Q
2
8
D
Q
2
9
D
Q
3
0
D
Q
3
1
V
SS
/E
/W
/C
S
1
/C
S
2
/O
E
V
SS
/A
V
/V
B
/R
E
S
E
T
/T
R
S
T
1
2
3
4
5
6
7
8
9
1
0
1
2
1
3
1
4
1
5
1
6
1
7
1
8
1
9
2
0
2
1
2
3
2
4
2
5
2
6
2
7
2
8
2
9
3
0
V
SS
V
SS
A
1
2
/N
C
*
A
8
V
SS
A
7
A
6
A
5
A
4
V
D
A
3
A
2
A
1
A
0
V
S
/M
F
/F
F
V
D
/M
I
/F
I
V
SS
/M
M
D
S
C
P
A
3
P
A
2
P
A
1
P
A
0
A
1
0
A
9
A
1
Melody RCP
100-Pin TQFP
(Top View)
* NC on MT75L4L32MLQ
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