поискавой системы для электроныых деталей
  Russian  ▼
ALLDATASHEETRU.COM

X  

Preview PDF HTML

LAN9250 датащи(PDF) 126 Page - Microchip Technology

номер детали LAN9250
подробное описание детали  Integrated Ethernet PHY with HP Auto-MDIX
PDF  421 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
производитель  MICROCHIP [Microchip Technology]
домашняя страница  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

LAN9250 датащи(HTML) 126 Page - Microchip Technology

Back Button LAN9250 Datasheet HTML 122Page - Microchip Technology LAN9250 Datasheet HTML 123Page - Microchip Technology LAN9250 Datasheet HTML 124Page - Microchip Technology LAN9250 Datasheet HTML 125Page - Microchip Technology LAN9250 Datasheet HTML 126Page - Microchip Technology LAN9250 Datasheet HTML 127Page - Microchip Technology LAN9250 Datasheet HTML 128Page - Microchip Technology LAN9250 Datasheet HTML 129Page - Microchip Technology LAN9250 Datasheet HTML 130Page - Microchip Technology Next Button
Zoom Inzoom in Zoom Outzoom out
 126 / 421 page
background image
LAN9250
DS00001913A-page 126
 2015 Microchip Technology Inc.
Figure 10-4 illustrates a typical single and multiple register read.
10.2.4.2
Fast Read
The Read at higher speed instruction inputs the instruction code and the address and dummy bytes one bit per clock
and outputs the data one bit per clock. In SQI mode, the instruction code and the address and dummy bytes are input
four bits per clock and the data is output four bits per clock. This instruction is supported in SPI and SQI bus protocols
with clock frequencies up to 80 MHz.
The SPI/SQI slave interface is selected by first bringing SCS# active. For SPI mode, the 8-bit FASTREAD instruction,
0Bh, is input into the SI/SIO[0] pin, followed by the two address bytes and 1 dummy byte. For SQI mode, the 8-bit FAS-
TREAD instruction is input into the SIO[3:0] pins, followed by the two address bytes and 3 dummy bytes. The address
bytes specify a BYTE address within the device.
On the falling clock edge following the rising edge of the last dummy bit (or nibble), the SO/SIO[1] pin is driven starting
with the msb of the LSB of the selected register. For SQI mode, SIO[3:0] are driven starting with the msn of the LSB of
the selected register. The remaining register bits are shifted out on subsequent falling clock edges.
The SCS# input is brought inactive to conclude the cycle. The SO/SIO[3:0] pins are three-stated at this time.
FIGURE 10-4:
SPI READ
SPI Read Single Register
SCK (active high)
SI
0
000
1
X
Instruction
1
Address
X
SO
d
e
c
Data
A
1
3
...
...
X
...
SPI Read Multiple Registers
00
D
7
D
6
D
5
Z
Z
X
SCK (active low)
SCS#
...
X
1
2
3
4
5
6
7
8
9
1
0
1
1
1
2
1
3
1
4
1
5
1
6
2
5
2
6
2
7
X
1
2
3
4
5
6
7
8
9
1
0
1
1
1
2
1
3
1
4
1
5
1
6
2
5
2
6
2
7
5
3
5
4
5
5
5
6
X
X
5
3
5
4
5
5
5
6
D
2
6
D
2
4
i
n
c
A
1
2
A
1
1
A
1
0
A
9
A
8
A
7
A
6
A
5
A
4
A
3
A
2
A
1
A
0
1
7
1
8
1
9
2
0
2
1
2
2
2
3
2
4
1
7
1
8
1
9
2
0
2
1
2
2
2
3
2
4
SCK (active high)
SI
0
000
1
X
Instruction
1
Address
X
SO
d
e
c
A
1
3
...
X
...
00
Z
SCK (active low)
SCS#
...
X
1
2
3
4
5
6
7
8
9
1
0
1
1
1
2
1
3
1
4
1
5
1
6
2
5
2
6
2
7
X
1
2
3
4
5
6
7
8
9
1
0
1
1
1
2
1
3
1
4
1
5
1
6
2
5
2
6
2
7
X
X
i
n
c
A
1
2
A
1
1
A
1
0
A
9
A
8
A
7
A
6
A
5
A
4
A
3
A
2
A
1
A
0
1
7
1
8
1
9
2
0
2
1
2
2
2
3
2
4
1
7
1
8
1
9
2
0
2
1
2
2
2
3
2
4
...
D
7
D
6
D
5
D
2
6
D
2
4
...
D
7
D
6
D
5
D
2
6
D
2
4
Z
X
X
...
...
D
2
5
D
2
5
D
2
5
Data 1...
Data m
Data m+1... Data n
...



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 96 97 98 99 100  ...More


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