Specifications ispLSI 5256VA
Functional Block Diagram
Figure 1. ispLSI 5256VA Functional Block Diagram (272 BGA Option)
VCCIO
1I/O 0 / TOE
I/O 1
I/O 2
I/O 3
I/O 20
I/O 21
I/O 22
I/O 23
I/O 24
I/O 25
I/O 26
I/O 27
I/O 44
I/O 45
I/O 46
I/O 47
Input Bus
Generic
Logic Block
Input Bus
Generic
Logic Block
Global Routing Pool
(GRP)
Boundary
Scan
Interface
TDI
TDO
I/O 143
I/O 142
I/O 141
I/O 140
I/O 123
I/O 122
I/O 121
I/O 120
I/O 119
I/O 118
I/O 117
I/O 116
I/O 99
I/O 98
I/O 97
I/O 96
GSET/GRST
Generic
Logic Block
Input Bus
Generic
Logic Block
Input Bus
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 89 / CLK2 I/O 98 / CLK3
I/O 119 / CLK2 I/O 131 / CLK3
I/O 0 / TOE
I/O 0 / TOE
I/O 0 / TOE
2