Subject: [model selector] keyword

From: Roland Chang <[email-masked]>
Date: Mon, 7 Jul 1997 15:25:57 -0700

Hello all,

I was wondering, in the use of the model selector keyword, can one list
POWER, GND, and NC?
The reason I ask, is that in the case of pins that are usable in various
modes, it often  involves grounding, or leaving  certain other pins
open(NC).

thanx,

roland
******************************************
Roland Chang ext. 2647

PMC-Sierra 
Applications Department
105-8555 Baxter Place
Burnaby, BC
V5A 4V7
Tel: (604) 415-6000

email: [email-masked]
******************************************

eg:

[Pin] signal_name    model_name     R_pin       L_pin      C_pin
.
.
.
9     CLKI         crystalbuf    
10   CLKO       crystalbuf
.
.
.
19  IN(+)          PECLbuf
20  IN(-)           PECLbuf
.
.
.
[Model Selector]    crystalbuf
NC        |default, CLKI, CLKO attached to a crystal
pc5x03  |if CLKO left open (NC), feed external clock signal into CLKI

[Model Selector]    PECLbuf
PECL_diff         |default, IN(+), IN(-) function as PECL differential
inputs
PECL_single    | IN(+) as single sided PECL, decouple IN(-) to ground.
TTL_single       | IN(+) as single sided TTL, IN(-) to ground.
GND