11
Specifications ispLSI 1024EA
USE ispMACH 4A5 FOR NEW
5V DESIGNS
Pin Description
Input - Controls the operation of the ISP state machine.
This is a dual function pin. It can be used either as Global Output Enable for all I/O cells or it can be
used as a dedicated input pin.
This is a dual function pin. It can be used either as Global Output Enable for all I/O cells or it can be
used as a dedicated input pin.
Dedicated Clock input. This clock input is brought into the clock distribution network, and can
optionally be routed to any GLB on the device.
Dedicated Clock input. This clock input is connected to one of the clock inputs of all of the GLBs on
the device.
Input/Output Pins - These are the general purpose I/O pins used by the logic array.
NAME
Table 2-0002A/1024EA
DESCRIPTION
I/O 0 - I/O 3
I/O 4 - I/O 7
I/O 8 - I/O 11
I/O 12 - I/O 15
I/O 16 - I/O 19
I/O 20 - I/O 23
I/O 24 - I/O 27
I/O 28 - I/O 31
I/O 32 - I/O 35
I/O 36 - I/O 39
I/O 40 - I/O 43
I/O 44 - I/O 47
Y1
Y0
TMS
Ground (GND)
GND
GOE 0/IN 4
1
GOE 1/IN 5
1
Input - Functions as an input pin to load programming data into the device and also used as one of
the two control pins for the ispJTAG state machine.
TDI
TDO
Output - Functions as an output pin to read serial shift register data.
TCK
Input - Functions as a clock pin for the Serial Shift Register.
Active Low (0) Reset pin which resets all of the GLB and I/O registers in the device.
RESET
Dedicated Clock input. This clock input is brought into the clock distribution network, and can
optionally be routed to any GLB and/or any I/O cell on the device.
Y2
Dedicated Clock input. This clock input is brought into the clock distribution network, and can
optionally be routed to any I/O cell on the device.
Y3
1. Pins have dual function capability which is software selectable.
2. NC pins are not to be connected to any active signals, Vcc or GND.
TQFP PIN
NUMBERS
Vcc
VCC
2,
25,
39,
52,
75,
88,
20,
28,
32,
43,
47,
55,
70,
78,
82,
93,
97,
5,
15,
62,
11,
66,
12,
26,
49,
63,
76,
99,
21,
29,
33,
44,
48,
56,
71,
79,
83,
94,
98,
6,
36,
89,
40,
85,
13,
27,
50,
64,
77,
100
22,
30,
34,
45,
53,
57,
72,
80,
84,
95,
3,
7
37,
90
41,
86
NC
2
No Connect
Supply voltage for output drivers, 5V or 3.3V.
VCCIO
1,
24,
38,
51,
74,
87,
19,
23,
31,
42,
46,
54,
69,
73,
81,
92,
96,
4,
67
9
68
8
91
18
35
58
17
60
59
14,
61,
10,
65,
16
