Specifications ispLSI 3256A
Functional Block Diagram
Figure 1. ispLSI 3256A Functional Block Diagram
Input Bus
Generic
Input Bus
TDI/SDI
ISP and
TOE
Logic
Output Routing Pool (ORP)
Output Routing Pool (ORP)
TRST
Boundary
Scan TAP
Blocks
TDO/SDO
H3
H2 H1 H0
G3
G2
G1
G0
I/O 95
I/O 94
I/O 93
I/O 92
I/O 0
I/O 1
I/O 2
I/O 3
A0
F3
I/O 4
I/O 5
I/O 6
I/O 7
I/O 91
I/O 90
I/O 89
I/O 88
A1
A2
A3
F2
F1
F0
I/O 8
I/O 9
I/O 10
I/O 11
I/O 87
I/O 86
I/O 85
I/O 84
I/O 12
I/O 13
I/O 14
I/O 15
I/O 83
I/O 82
I/O 81
I/O 80
Global Routing Pool
(GRP)
I/O 16
I/O 17
I/O 18
I/O 19
I/O 79
I/O 78
I/O 77
I/O 76
B0
B1
B2
B3
E3
E2
E1
E0
I/O 20
I/O 21
I/O 22
I/O 23
I/O 75
I/O 74
I/O 73
I/O 72
I/O 24
I/O 25
I/O 26
I/O 27
I/O 71
I/O 70
I/O 69
I/O 68
I/O 28
I/O 29
I/O 30
I/O 31
I/O 67
I/O 66
I/O 65
I/O 64
C0
C1
C2
C3
D0
D1
D2
D3
Output Routing Pool (ORP)
Input Bus
Output Routing Pool (ORP)
Input Bus
RESET
0139isp/3256A
2
LATTICE [ LATTICE SEMICONDUCTOR ]
