OR2C04A datasheet(70/192 Pages) ETC

70 / 192 page

Data Sheet

ORCA Series 2 FPGAs

June 1999

Lucent Technologies Inc.

Pin Information (continued)

Compatibility with Series 3 FPGAs

Pinouts for the OR2CxxA, OR2TxxA, and OR2TxxB devices will be consistent with the Series 3 FPGAs for all

devices offered in the same packages. This includes the following pins: VDD, VSS, VDD5 (OR3C/Txxx series only),

and all configuration pins. Identical to the OR2TxxB devices, Series 3 devices provide 5 V tolerant I/Os without a

dedicated VDD5 supply

The following restrictions apply:

1. There are two configuration modes supported in the OR2C/TxxA series that are not supported in the

Series 3 FPGAs series: master parallel down and synchronous peripheral modes. The Series 3 FPGAs have two

new microprocessor interface (MPI) configuration modes that are unavailable in the Series 2.

2. There are 4 pins—one per each device side—that are user I/O in the OR2C/TxxA series which can only be used

as fast dedicated clocks or global inputs in the Series 3 series. These pins are also used to drive the Express-

CLK to the I/O FFs on their given side of the device. These four middle ExpressCLK pins should not be used to

connect to a programmable clock manager (PCM). A corner ExpressCLK input should be used instead (see note

below). See Table 18C for a list of these pins in each package.

3. There are two other pins that are user I/O in both the Series 2 and Series 3 series but also have optional added

functionality in the Series 3 series. Each of these pins drives the ExpressCLKs on two sides of the device. They

also have fast connectivity to the programmable clock manager (PCM). See Table 18C for a preliminary list of

these pins in each package.

Note: The ECKR, ECKL, ECKT, and ECKB pins drive the ExpressCLK on their given edge of the device, while I/O—SECKLL and

I/O—SECKUR drive an ExpressCLK on two edges of the device and provide connectivity to the programmable clock manager.

Table 18C. Series 3 ExpressCLK Pins

Pin Name/

Package

208-Pin

SQFP2

240-Pin

SQFP2

256-Pin

PBGA

352-Pin

PBGA

432-Pin

EBGA

600-Pin

EBGA

ECKL

R29

U33

ECKB

W11

AE14

AH16

AM18

ECKR

131

152

K18

N23

ECKT

178

207

B11

B14

C15

C17

I/O—SECKLL

AB4

AG29

AK34

I/O—SECKUR

159

184

A19

A25

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