Electronic Components Datasheet Search
  English  ▼
ALLDATASHEET.NET

X  

Preview PDF HTML

LAN9250 Datasheet(PDF) 129 Page - Microchip Technology

Part # LAN9250
Description  Integrated Ethernet PHY with HP Auto-MDIX
PDF  421 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

LAN9250 Datasheet(HTML) 129 Page - Microchip Technology

Back Button 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 LAN9250 Datasheet HTML 131Page - Microchip Technology LAN9250 Datasheet HTML 132Page - Microchip Technology LAN9250 Datasheet HTML 133Page - Microchip Technology Next Button
Zoom Inzoom in Zoom Outzoom out
 129 / 421 page
background image
 2015 Microchip Technology Inc.
DS00001913A-page 129
LAN9250
10.2.5
QUAD OUTPUT READ
The SPI Quad Output Read instruction inputs the instruction code and the address and dummy bytes one bit per clock
and outputs the data four bits per clock. This instruction is supported in SPI bus protocol only with clock frequencies up
to 80 MHz. This instruction is not supported in SQI bus protocol.
The SPI slave interface is selected by first bringing SCS# active. The 8-bit SQOR instruction, 6Bh, is input into the SIO[0]
pin, followed by the two address bytes and 1 dummy byte. The address bytes specify a BYTE address within the device.
On the falling clock edge following the rising edge of the last dummy bit, the SIO[3:0] pins are driven starting with the
msn of the LSB of the selected register. The remaining register nibbles are shifted out.
The SCS# input is brought inactive to conclude the cycle. The SIO[3:0] pins are three-stated at this time.
Figure 10-8 illustrates a typical single and multiple register quad output read.
FIGURE 10-8:
SPI QUAD OUTPUT READ
SPI Quad Output Read Single Register
SCK (active high)
SIO0
01
1
1
X
Instruction
1
Address
SIO1
d
e
c
Data
A
1
3
SPI Quad Output Read Multiple Registers
10
D
5
D
4
D
1
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
3
3
3
4
3
5
X
1
2
3
4
5
6
7
8
9
1
0
1
1
1
2
1
3
1
4
1
5
1
6
3
3
3
4
3
5
3
7
3
8
3
9
4
0
X
X
3
7
3
8
3
9
4
0
D
1
7
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)
SIO0 X
Instruction
Address
SIO1
d
e
c
A
1
3
...
...
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
X
1
2
3
4
5
6
7
8
9
1
0
1
1
1
2
1
3
1
4
1
5
1
6
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
...
...
...
...
x
x
x
x
x
x
x
x
2
5
2
6
2
7
2
8
2
9
3
0
3
1
3
2
2
5
2
6
2
7
2
8
2
9
3
0
3
1
3
2
Dummy
x
x
x
x
x
x
x
x
Dummy
2
5
2
6
2
7
2
8
2
9
3
0
3
1
2
5
2
6
2
7
2
8
2
9
3
0
3
1
3
2
3
2
3
3
3
4
3
5
3
3
3
4
3
5
D
2
5
Data 1...
Data m
Data m+1... Data n
...
D
0
D
1
3
D
1
2
D
2
4
D
1
6
D
2
8
D
2
9
X
Data
D
5
D
4
D
1
D
0
D
1
3
D
1
2
D
1
7
D
2
5
D
2
4
D
1
6
D
2
8
D
2
9
Z
X
X
Data 1...
Data m
Data m+1... Data n
SIO2
Z
...
...
Data 1...
Data m
Data m+1... Data n
D
6
D
2
D
1
4
D
1
8
D
2
6
D
3
0
Z
X
SIO3
Z
...
...
Data 1...
Data m
Data m+1... Data n
D
7
D
3
D
1
5
D
1
9
D
2
7
D
3
1
Z
X
D
5
D
4
D
1
D
0
D
1
3
D
1
2
D
6
D
2
D
1
4
D
7
D
3
D
1
5
D
1
7
D
2
5
D
2
4
D
1
6
D
2
8
D
2
9
D
1
8
D
2
6
D
3
0
D
1
9
D
2
7
D
3
1
SIO2
Z
D
6
D
2
D
1
4
D
1
8
D
2
6
D
3
0
SIO3
Z
D
7
D
3
D
1
5
D
1
9
D
2
7
D
3
1
Z
X
Z
X
0
01
1
1
1
10
0
Data
Data
3
6
3
6
D
9
D
8
D
2
1
D
2
0
D
1
0
D
2
2
D
1
1
D
2
3



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


Datasheet Download

Go To PDF Page


Link URL



Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Contact us   |   Privacy Policy   |   Link to Datasheet    |   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