Specifications
ispLSI 5256VA
Functional Block Diagram
Figure 1. ispLSI 5256VA Functional Block Diagram (272 BGA Option)
I/O 191
I/O 190
I/O 189
I/O 188
I/O 171
I/O 170
I/O 169
I/O 168
I/O 167
I/O 166
I/O 165
I/O 164
I/O 147
I/O 146
I/O 145
I/O 144
GOE0
GOE1
Input Bus
Generic
Logic Block
Input Bus
Generic
Logic Block
Boundary
Scan
Interface
TMS
TCK
TDI
TDO
VCCIO
1I/O
0 / TOE
I/O 1
I/O 2
I/O 3
Generic
Logic Block
Input Bus
I/O 143
I/O 142
I/O 141
I/O 140
Generic
Logic Block
Input Bus
I/O 20
I/O 21
I/O 22
I/O 23
I/O 123
I/O 122
I/O 121
I/O 120
Generic
Logic Block
Input Bus
I/O 24
I/O 25
I/O 26
I/O 27
Global Routing Pool
(GRP)
Generic
Logic Block
Input Bus
I/O 119
I/O 118
I/O 117
I/O 116
I/O 44
I/O 45
I/O 46
I/O 47
I/O 99
I/O 98
I/O 97
I/O 96
Generic
Logic Block
Input Bus
GSET/GRST
Generic
Logic Block
Input Bus
I/O 72
I/O 73
I/O 74
I/O 75
CLK 0
CLK 1
1CLK 2
1CLK 3
I/O 48
I/O 49
I/O 50
I/O 51
1. CLK2, CLK3 and TOE signals are multiplexed with I/O signals. Which I/O is multiplexed is
determined by the package type used (see table below).
Package Type
208 PQFP
208 fpBGA
272 BGA
Multplexed Signals
I/O 89 / CLK2
I/O 98 / CLK3
I/O 0 / TOE
I/O 89 / CLK2
I/O 98 / CLK3
I/O 0 / TOE
I/O 119 / CLK2
I/O 131 / CLK3
I/O 0 / TOE
I/O 68
I/O 69
I/O 70
I/O 71
2
I/O 92
I/O 93
I/O 94
I/O 95