XR16C872 Datasheet, PDF (41/60 Pages) Exar Corporation – DUAL UART WITH 1284 PARALLEL PORT AND PLUG-AND-PLAY CONTROLLER

DISCONTINUED
XR16C872
“CENTRONICS, SPP” SIGNAL DESCRIPTIONS
Signal
Name
Signal
Type
Description
STROBE#
O
Active low. Indicates valid data is on the data lines.
AUTOFD#
O
Active low. Instructs the printer to automatically insert a line feed for each carriage
return.
SELCTIN#
O
Active low. Used to indicate to the printer that it is selected.
INIT#
O
Active low. Used to reset the printer
ACK#
I
A low asserted pulse used to indicate that the last character was received.
BUSY
I
A high signal asserted by the printer to indicate that it is busy and cannot take data.
PE
I
A high signal indicated that printer paper is empty.
SELECT
I
A high signal indicates that printer is online.
ERR#
I
Asserted low to indicate that some error condition exists.
PD0-PD7
O
Data.
Rev. 1.00
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