Electronic Components Datasheet Search
  English  ▼
ALLDATASHEET.COM

X  

SCC68681C1A44 Datasheet(PDF) 14 Page - NXP Semiconductors

Part # SCC68681C1A44
Description  Dual asynchronous receiver/transmitter
Download  29 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  PHILIPS [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

SCC68681C1A44 Datasheet(HTML) 14 Page - NXP Semiconductors

Back Button SCC68681C1A44 Datasheet HTML 10Page - NXP Semiconductors SCC68681C1A44 Datasheet HTML 11Page - NXP Semiconductors SCC68681C1A44 Datasheet HTML 12Page - NXP Semiconductors SCC68681C1A44 Datasheet HTML 13Page - NXP Semiconductors SCC68681C1A44 Datasheet HTML 14Page - NXP Semiconductors SCC68681C1A44 Datasheet HTML 15Page - NXP Semiconductors SCC68681C1A44 Datasheet HTML 16Page - NXP Semiconductors SCC68681C1A44 Datasheet HTML 17Page - NXP Semiconductors SCC68681C1A44 Datasheet HTML 18Page - NXP Semiconductors Next Button
Zoom Inzoom in Zoom Outzoom out
 14 / 29 page
background image
Philips Semiconductors
Product data
SCC68681
Dual asynchronous receiver/transmitter (DUART)
2004 Apr 06
14
SRA[4] – Channel A Overrun Error
This bit, when set, indicates that one or more characters in the
received data stream have been lost. It is set upon receipt of a new
character when the FIFO is full and a character is already in the
receive shift register waiting for an empty FIFO position. When this
occurs, the character in the receive shift register (and its break
detect, parity error and framing error status, if any) is lost.
This bit is cleared by a ‘reset error status’ command.
SRA[3] – Channel A Transmitter Empty (TxEMTA)
This bit will be set when the transmitter underruns, i.e., both the
TxEMT and TxRDY bits are set. This bit and TxRDY are set when
the transmitter is first enabled and at any time it is re-enabled after
either (a) reset, or (b) the transmitter has assumed the disabled
state. It is always set after transmission of the last stop bit of a
character if no character is in the THR awaiting transmission.
It is reset when the THR is loaded by the CPU, a pending
transmitter disable is executed, the transmitter is reset, or the
transmitter is disabled while in the underrun condition.
SRA[2] – Channel A Transmitter Ready (TxRDYA)
This bit, when set, indicates that the THR is empty and ready to be
loaded with a character. This bit is cleared when the THR is loaded
by the CPU and is set when the character is transferred to the transmit
shift register. TxRDY is reset when the transmitter is disabled and is
set when the transmitter is first enabled, viz., characters loaded into
the THR while the transmitter is disabled will not be transmitted.
SRA[1] – Channel A FIFO Full (FFULLA)
This bit is set when a character is transferred from the receive shift
register to the receive FIFO and the transfer causes the FIFO to
become full, i.e., all three FIFO positions are occupied. It is reset
when the CPU reads the RHR. If a character is waiting in the
receive shift register because the FIFO is full, FFULL will not be
reset when the CPU reads the RHR.
SRA[0] – Channel A Receiver Ready (RxRDYA)
This bit indicates that a character has been received and is waiting
in the FIFO to be read by the CPU. It is set when the character is
transferred from the receive shift to the FIFO and reset when the
CPU reads the RHR, if after this read there are not more characters
still in the FIFO.
SRB – Channel B Status Register
The bit definitions for this register are identical to the bit definitions
for SRA, except that all status applies to the Channel B receiver and
transmitter and the corresponding inputs and outputs.


Similar Part No. - SCC68681C1A44

ManufacturerPart #DatasheetDescription
logo
NXP Semiconductors
SCC68692 PHILIPS-SCC68692 Datasheet
193Kb / 30P
   Dual asynchronous receiver/transmitter DUART
1998 Sep 04
SCC68692C1A44 PHILIPS-SCC68692C1A44 Datasheet
193Kb / 30P
   Dual asynchronous receiver/transmitter DUART
1998 Sep 04
SCC68692C1F40 PHILIPS-SCC68692C1F40 Datasheet
193Kb / 30P
   Dual asynchronous receiver/transmitter DUART
1998 Sep 04
SCC68692C1N40 PHILIPS-SCC68692C1N40 Datasheet
193Kb / 30P
   Dual asynchronous receiver/transmitter DUART
1998 Sep 04
SCC68692E1A44 PHILIPS-SCC68692E1A44 Datasheet
193Kb / 30P
   Dual asynchronous receiver/transmitter DUART
1998 Sep 04
More results

Similar Description - SCC68681C1A44

ManufacturerPart #DatasheetDescription
logo
Motorola, Inc
MC68681 MOTOROLA-MC68681 Datasheet
964Kb / 35P
   Dual Asynchronous Receiver/Transmitter
logo
NXP Semiconductors
SCN2681T PHILIPS-SCN2681T Datasheet
114Kb / 14P
   Dual asynchronous receiver/transmitter DUART
1998 Sep 04
SCC2692 PHILIPS-SCC2692 Datasheet
209Kb / 30P
   Dual asynchronous receiver/transmitter DUART
1998 Sep 04
SCN2681 PHILIPS-SCN2681 Datasheet
205Kb / 30P
   Dual asynchronous receiver/transmitter DUART
1998 Sep 04
SCC2681T PHILIPS-SCC2681T Datasheet
108Kb / 15P
   Dual asynchronous receiver/transmitter (DUART)
2004 Apr 06
SCN68681 PHILIPS-SCN68681 Datasheet
187Kb / 28P
   Dual asynchronous receiver/transmitter DUART
1998 Sep 04
SCC68692 PHILIPS-SCC68692 Datasheet
193Kb / 30P
   Dual asynchronous receiver/transmitter DUART
1998 Sep 04
SCC2681 PHILIPS-SCC2681 Datasheet
204Kb / 29P
   Dual asynchronous receiver/transmitter (DUART)
2004 Apr 06
SC28L202 PHILIPS-SC28L202 Datasheet
531Kb / 77P
   Dual universal asynchronous receiver/transmitter DUART
2000 Feb 10
logo
Exar Corporation
ST162552 EXAR-ST162552 Datasheet
121Kb / 28P
   DUAL ASYNCHRONOUS RECEIVER/TRANSMITTER WITH FIFOs
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29


Datasheet Download

Go To PDF Page


Link URL




Privacy Policy
ALLDATASHEET.COM
Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Datasheet Upload   |   Contact us   |   Privacy Policy   |   Link Exchange   |   Manufacturer List
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com