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ISPLSI1016E Datasheet(PDF) 2 Page - Lattice Semiconductor

Part No. ISPLSI1016E
Description  In-System Programmable High Density PLD
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Maker  LATTICE [Lattice Semiconductor]
Homepage  http://www.latticesemi.com
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2
Specifications ispLSI 1016E
Functional Block Diagram
Figure 1. ispLSI 1016E Functional Block Diagram
The device also has 32 I/O cells, each of which is directly
connected to an I/O pin. Each I/O cell can be individually
programmed to be a combinatorial input, registered in-
put,
latched
input,
output
or
bi-directional
I/O pin with 3-state control. The signal levels are TTL
compatible voltages and the output drivers can source
4 mA or sink 8 mA. Each output can be programmed
independently for fast or slow output slew rate to mini-
mize overall output switching noise.
Eight GLBs, 16 I/O cells, two dedicated inputs and one
ORP are connected together to make a Megablock (see
Figure 1). The outputs of the eight GLBs are connected
to a set of 16 universal I/O cells by the ORP. Each ispLSI
1016E device contains two Megablocks.
The GRP has, as its inputs, the outputs from all of the
GLBs and all of the inputs from the bi-directional I/O cells.
All of these signals are made available to the inputs of the
GLBs. Delays through the GRP have been equalized to
minimize timing skew.
Clocks in the ispLSI 1016E device are selected using the
Clock Distribution Network. Three dedicated clock pins
(Y0, Y1 and Y2) are brought into the distribution network,
and five clock outputs (CLK 0, CLK 1, CLK 2, IOCLK 0
and IOCLK 1) are provided to route clocks to the GLBs
and I/O cells. The Clock Distribution Network can also be
driven from a special clock GLB (B0 on the ispLSI 1016E
device). The logic of this GLB allows the user to create an
internal clock from a combination of internal signals
within the device.
I/O 0
I/O 1
I/O 2
I/O 3
GOE 0/IN 3
MODE/IN 2
I/O 6
I/O 7
I/O 8
I/O 9
I/O 10
I/O 11
I/O 12
I/O 13
I/O 14
I/O 15
I/O 31
I/O 30
I/O 29
I/O 28
I/O 27
I/O 26
I/O 25
I/O 24
I/O 23
I/O 22
I/O 21
I/O 20
I/O 19
I/O 18
I/O 17
I/O 16
SDI/IN 0
SDO/IN 1
I/O 4
I/O 5
ispEN
Global
Routing
Pool
(GRP)
CLK 0
CLK 1
CLK 2
IOCLK 0
IOCLK 1
Clock
Distribution
Network
A0
A1
A2
A3
A4
A5
A6
A7
B7
B6
B5
B4
B3
B2
B1
B0
Generic
Logic Blocks
(GLBs)
Megablock
*Note: Y1 and RESET are multiplexed on the same pin
0139B(1a)-isp




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