数据搜索系统，热门电子元器件搜索
  Chinese  ▼
ALLDATASHEETCN.COM

X  

预览 PDF HTML

SCN68652 数据表(PDF) 8 Page - NXP Semiconductors

部件名 SCN68652
功能描述  Multi-protocol communications controller (MPCC)
PDF  28 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  PHILIPS [NXP Semiconductors]
网页  http://www.nxp.com
标志 PHILIPS - NXP Semiconductors

SCN68652 数据表(HTML) 8 Page - NXP Semiconductors

Back Button SCN68652 Datasheet HTML 4Page - NXP Semiconductors SCN68652 Datasheet HTML 5Page - NXP Semiconductors SCN68652 Datasheet HTML 6Page - NXP Semiconductors SCN68652 Datasheet HTML 7Page - NXP Semiconductors SCN68652 Datasheet HTML 8Page - NXP Semiconductors SCN68652 Datasheet HTML 9Page - NXP Semiconductors SCN68652 Datasheet HTML 10Page - NXP Semiconductors SCN68652 Datasheet HTML 11Page - NXP Semiconductors SCN68652 Datasheet HTML 12Page - NXP Semiconductors Next Button
Zoom Inzoom in Zoom Outzoom out
 8 / 28 page
background image
Philips Semiconductors
Product specification
SCN2652/SCN68652
Multi-protocol communications controller (MPCC)
1995 May 01
8
ASSEMBLE CHARACTER
IN RxSR. ZERO DELETION,
ACCUMULATE CRC IF
SPECIFIED
A
INITIALIZE PCSAR, PCR
RxE
= 1?
RECEIVER
STATUS BIT 0
→ 1
EXCEPT RSOM
?
PROCESSOR
RxE = 1
NO
FLAG
IN CCSR*
?
YES
NO
* TEST MADE
EVERY RxC TIME
NO
S/F = 1
FOR ONE RxC
BIT TIME
(1) OVERRUN (ROVRN)
CAUSES LOSS OF
SUBSEQUENT
CHARACTERS
IS
IT 1st
CHARACTER
AFTER FLAG
?
NO
SEC.
STATION
MODE
?
YES
SECONDARY
STATION
ADDRESS
IS
CHARACTER
= PCSARL
?
NO
YES
YES
(PCSAR12 = 1)
YES
NO
FLAG
IN CCSR*
?
YES – END OF MESSAGE
NO
RxSR
→ RxDB
NO
(PCSAR12 = 0)
START OF
MESSAGE
RxA = 1
RSOM = 1
FOR ONE
CHARACTER
TIME
RxDA = 1
(PROCESSOR
SHOULD
READ RxDB)
FLAG
IN CCSR*
?
YES
YES
RxE
→ 0
?
NO
A
YES
RXSA = 1
(PROCESSOR SHOULD
READ AND EXAMINE
RDSRH – REOM, RAB/GA,
ROVRN, ABC, RERR)
S/F = 1 FOR ONE RxC
BIT TIME
REOM = 1, RxA = 0
SD00061
Figure 6. BOP Receive
TRANSMITTER OPERATION
General
After the parameter control registers (PCSAR and PCR) have been
initialized, TxSO is held at mark until TSOM (TDSR8) is set and TxE
is raised. Then, transmitter operation depends on protocol mode.
TxBOP Operation
Transmitter operation for BOP is shown in Figure 8. A FLAG is sent
after the processor sets the Transmit Start of Message bit (TSOM)
and raises TxE. The FLAG is used to synchronize the message that
follows. TxA will also be asserted. When TxBE is asserted by the



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


数据表 下载

Go To PDF Page


链接网址



ALLDATASHEET是否为您带来帮助?  [ DONATE ] 

关于 Alldatasheet   |   广告服务   |   联系我们   |   隐私政策   |   数据表链接    |   链接交换   |   制造商名单
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