전자부품 데이터시트 검색엔진
  Korean  ▼
ALLDATASHEET.CO.KR

X  

Preview PDF HTML

LAN9250 데이터시트(PDF) 131 Page - Microchip Technology

부품명 LAN9250
상세설명  Integrated Ethernet PHY with HP Auto-MDIX
PDF  421 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
제조업체  MICROCHIP [Microchip Technology]
홈페이지  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

LAN9250 데이터시트(HTML) 131 Page - Microchip Technology

Back Button 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 LAN9250 Datasheet HTML 134Page - Microchip Technology LAN9250 Datasheet HTML 135Page - Microchip Technology Next Button
Zoom Inzoom in Zoom Outzoom out
 131 / 421 page
background image
 2015 Microchip Technology Inc.
DS00001913A-page 131
LAN9250
10.2.5.2
Quad I/O Read
The SPI Quad I/O Read instruction inputs the instruction code one bit per clock and the address and dummy bytes four
bits 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 SQIOR instruction, EBh, is input into the
SIO[0] pin, followed by the two address bytes and 4 dummy bytes into the SIO[3:0] pins. The address bytes specify a
BYTE address within the device.
On the falling clock edge following the rising edge of the last dummy nibble, 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 on subsequent falling clock
edges.
The SCS# input is brought inactive to conclude the cycle. The SIO[3:0] pins are three-stated at this time.
Figure 10-10 illustrates a typical single and multiple register quad I/O read.
FIGURE 10-10:
SPI QUAD I/O READ
SPI Quad I/O Read Single Register
SCK (active high)
SIO0
11
1
1
X
Instruction
1
SIO1
Data
SPI Quad I/O Read Multiple Registers
10
D
5
D
4
D
1
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
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
2
8
X
X
2
5
2
6
2
7
2
8
D
1
7
1
7
1
8
1
9
2
0
2
1
2
2
2
3
1
7
1
8
1
9
2
0
2
1
2
2
2
3
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
1
7
1
8
1
9
2
0
2
1
2
2
2
3
...
...
...
...
x
x
x
x
x
x
x
x
Dummy
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
D
6
D
2
D
1
4
D
1
8
D
2
6
D
3
0
SIO3
D
7
D
3
D
1
5
D
1
9
D
2
7
D
3
1
Z
X
Z
X
0
11
1
1
1
10
0
x
x
x
x
x
x
x
x
Dummy
x
x
x
x
x
x
x
x
Dummy
x
x
x
x
x
x
x
x
Dummy
Address
d
e
c
A
1
3
Z
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
Z
Z
x
x
x
x
x
x
x
x
Dummy
x
x
x
x
x
x
x
x
Dummy
x
x
x
x
x
x
x
x
Dummy
x
x
x
x
x
x
x
x
Dummy
2
4
2
4
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


데이터시트 다운로드

Go To PDF Page


링크 URL



ALLDATASHEET 가 귀하에 도움이 되셨나요?  [ DONATE ] 

Alldatasheet는?   |   광고문의   |   운영자에게 연락하기   |   개인정보취급방침   |   링크 투 데이터시트    |   링크교환   |   제조사별 검색
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