Specifications
ispLSI 5256VE
Functional Block Diagram
Figure 1. ispLSI 5256VE Functional Block Diagram (144-I/O Option)
I/O 143
I/O 142
I/O 141
I/O 140
I/O 129
I/O 128
I/O 127
I/O 126
I/O 125
I/O 124
I/O 123
I/O 122
I/O 111
I/O 110
I/O 109
I/O 108
GOE0
GOE1
Input Bus
Generic
Logic Block
Input Bus
Generic
Logic Block
Boundary
Scan
Interface
TMS
TCK
TDI
TDO
VCCIO
1TOE
I/O 1
I/O 2
I/O 3
Generic
Logic Block
Input Bus
I/O 107
I/O 106
I/O 105
I/O 104
Generic
Logic Block
Input Bus
I/O 14
I/O 15
I/O 16
I/O 17
I/O 93
I/O 92
I/O 91
I/O 90
Generic
Logic Block
Input Bus
I/O 18
I/O 19
I/O 20
I/O 21
Global Routing Pool
(GRP)
Generic
Logic Block
I/O 89
I/O 88
I/O 87
I/O 86
Input Bus
I/O 32
I/O 33
I/O 34
I/O 35
I/O 75
I/O 74
I/O 73
I/O 72
Generic
Logic Block
Generic
Logic Block
Input Bus
RESET
Input Bus
I/O 54
I/O 55
I/O 56
I/O 57
CLK 0
CLK 1
1CLK 2
1CLK 3
I/O 36
I/O 37
I/O 38
I/O 39
1. CLK2, CLK3 and TOE signals are shared with I/O signals. Use the table below to determine
which I/O is shared by package type.
Package Type
100 TQFP
128 TQFP
256 fpBGA
272 BGA
I/O 50
I/O 51
I/O 52
I/O 53
1/O 44 / CLK2
I/O 59 / CLK2
I/O 119 / CLK2
I/O 119 / CLK2
Multplexed Signals
I/O 49 / CLK 3
I/O 65 / CLK3
I/O 131 / CLK3
I/O 131 / CLK3
I/O 68
I/O 69
I/O 70
I/O 71
I/O 0 / TOE
I/O 0 / TOE
I/O 0 / TOE
I/O 0 / TOE
2