control register in LPT port

Status
Not open for further replies.
E

e.mfr

Newbie level 5
Joined
Sep 7, 2005
Messages
10
Helped
3
Reputation
6
Reaction score
1
Trophy points
1,283
Location
world of electronic
Activity points
1,373
lpt control register

I need information about control register in LPT port
(pin 1,14,16,17)
which is input or output?
can i use data register in input status?

thanks
 

inpout lpt registry

check the following
**broken link removed**
**broken link removed**

Check the "Bi-directional Ports" in the second site (beyond logic). You need to enable bidirectional mode. But normal printers do not use them as inputs.

have a nice day
SivaC
 

lpt + control register

join yahoo group- parallelport

from files download Parallel Port For u

read it , then u will get it
 

lpt control data register

control port and data port are bi-directional
 

register of lpt

can u tell me How I change control & data register to input?

tanx
 

lpt port registers

First, your port must be configured as a bi-directional (PS/2) in BIOS setup program. Second, you must manipulate with the direction control bit (5) of control register:
0 - outputs enabled
1 - outputs disabled

Also, you may configure your port as ECP, or as ECP+EPP ( but not EPP only!).
In this case you must set an appropriate bit mask in 5,6,7 bits of ECR register (base address + 402h for standard port, may be vary for PCI LPTs).
000-SPP (standard)
001-PS/2 (bi0directional)
011-ECP
100-EPP
 

    E

    e.mfr

    Points: 2
    Helpful Answer Positive Rating
Status
Not open for further replies.

Similar threads

Menu
Log in
Register
Cookies are required to use this site. You must accept them to continue using the site. Learn more…