поискавой системы для электроныых деталей
  Russian  ▼
ALLDATASHEETRU.COM

X  

Preview PDF HTML

VSC8658 датащи(PDF) 76 Page - Microsemi Corporation

номер детали VSC8658
подробное описание детали  Octal 10/100/1000BASE-T PHY and 100BASEFX/1000BASE-X SerDes
PDF  95 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
производитель  MICROSEMI [Microsemi Corporation]
домашняя страница  http://www.microsemi.com
Logo MICROSEMI - Microsemi Corporation

VSC8658 датащи(HTML) 76 Page - Microsemi Corporation

Back Button VSC8658 Datasheet HTML 72Page - Microsemi Corporation VSC8658 Datasheet HTML 73Page - Microsemi Corporation VSC8658 Datasheet HTML 74Page - Microsemi Corporation VSC8658 Datasheet HTML 75Page - Microsemi Corporation VSC8658 Datasheet HTML 76Page - Microsemi Corporation VSC8658 Datasheet HTML 77Page - Microsemi Corporation VSC8658 Datasheet HTML 78Page - Microsemi Corporation VSC8658 Datasheet HTML 79Page - Microsemi Corporation VSC8658 Datasheet HTML 80Page - Microsemi Corporation Next Button
Zoom Inzoom in Zoom Outzoom out
 76 / 95 page
background image
Electrical Specifications
VMDS-10242 VSC8658 Datasheet Revision 4.1
68
Figure 20 •
SMI Interface Timing
6.3.5
Device Reset
The following specifications apply to the device reset functionality. The illustration shows the reset timing.
MDC fall time
tF
100
tCYC × 10%(1)
MDC to MDIO valid tCO
10
300
ns
Time-dependant on the value of
the external pull-up resistor on
the MDIO pin
1.
For fCLK above 1 MHz, the minimum rise time and fall time is in relation to the frequency of the MDC clock period. For example,
if fCLK is 2 MHz, the minimum clock rise time and fall time is 50 ns.
Table 78 •
AC Characteristics for Device Reset
Parameter
Symbol
Minimum
Maximum
Unit Condition
NRESET assertion time
tRESET
100
ns
Wait time between
NRESET de-assert and
access of the SMI
interface
tWAIT
20
220
ms
ms
Register 21E.14 = 0
Register 21E.14 = 1
Soft reset (pin) assertion
tSRESET_ASSERT
4ms
Soft reset (pin) de-
assertion
tSRESET_DEASSERT 4ms
Wait time between soft
reset pin de-assert and
access of the SMI
interface
tSWAIT
4
300
200
200
µs
µs
ms
ms
Registers 22.9 = 1, 21E.14 = 0
Registers 22.9 = 0, 21E.14 = 0
Registers 22.9 = 0, 21E.14 = 1
Registers 22.9 = 1, 21E.14 = 1
Soft reset MII register 0.15
assertion
tSREG_RESET
100
ns
Table 77 •
AC Characteristics for the SMI Interface (continued)
Parameter
Symbol Minimum
Typical
Maximum
Unit Condition
tSU
Data
MDC
tH
tWL
tWH
tCO
Data
tCYC
MDIO
(write)
MDIO
(read)



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 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95


датащи скачать

Go To PDF Page


ссылки URL



Вашему бизинису помогли Аллдатащит?  [ DONATE ] 

Что такое Аллдатащит   |   реклама   |   контакт   |   Конфиденциальность   |   Ссылка на техническое описание    |   обмен ссыками   |   поиск по производителю
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