データシートサーチシステム
  Japanese  ▼
ALLDATASHEET.JP

X  

Preview PDF HTML

ST95HF データシート(PDF) 46 Page - STMicroelectronics

部品番号 ST95HF
部品情報  Dedicated internal frame controller
PDF  93 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
メーカー  STMICROELECTRONICS [STMicroelectronics]
ホームページ  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST95HF データシート(HTML) 46 Page - STMicroelectronics

Back Button ST95HF Datasheet HTML 42Page - STMicroelectronics ST95HF Datasheet HTML 43Page - STMicroelectronics ST95HF Datasheet HTML 44Page - STMicroelectronics ST95HF Datasheet HTML 45Page - STMicroelectronics ST95HF Datasheet HTML 46Page - STMicroelectronics ST95HF Datasheet HTML 47Page - STMicroelectronics ST95HF Datasheet HTML 48Page - STMicroelectronics ST95HF Datasheet HTML 49Page - STMicroelectronics ST95HF Datasheet HTML 50Page - STMicroelectronics Next Button
Zoom Inzoom in Zoom Outzoom out
 46 / 93 page
background image
Commands
ST95HF
46/93
DocID025630 Rev 4
How to modify Analog Register Configuration register (ACC_A) values
1.
Use the PROTOCOLSELECT command (0x02) to select the correct communication
protocol.
For example, to select the ISO/IEC 14443-A card emulation protocol:
Send PROTOCOLSELECT command:
>>>0x02021208
ST95HF reply:
<<<0x0000
2.
Read the Analog Register Configuration register (ACC_A) value.
a)
Write the ACC_A register index at 0x04:
>>>0x0903680004
ST95HF reply:
<<<0x0000
b)
Read the ACC_A register value:
>>>0x0803690100
ST95HF reply:
<<<0x0127
In this example, the ACC_A register value is 0x27, where “2” is the Demodulator
Sensitivity and “7” is the Load Modulation Index.
3.
Modify the Load Modulation Index values with 0x25.
Write the ACC_A register index:
>>>0x090468010425
ST95HF reply:
<<<0x0000
4.
Read the Analog Configuration register (ACC_A) value.
a)
Write the ACC_A register index at 0x04:
>>>0x0903680004
ST95HF reply:
<<<0x0000
b)
Read the ACC_A register value:
>>>0x0803690100
ST95HF reply:
<<<0x0125
Load Modulation Index and Demodulator Sensitivity values
.
Note:
Bits [7:6] of ACC_A register are RFU and must set to ‘0’.
Table 33. Possible Load Modulation Index values
Code (bits [3:0] of ACC_A register)
1
2
...
7
...
E
F
Load Modulation Index
Min.
-
-
Default
-
-
Max.
Table 34. Possible Demodulator Sensitivity values
Code (bits [5:4] of ACC_A register)
0x1
0x2
Demodulator Sensitivity (1)
1. Characterized by design simulation.
10%
100%



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


データシート ダウンロード

Go To PDF Page


リンク URL



ALLDATASHEETはお客様のビジネスに役立ちますか？  [ DONATE ] 

Alldatasheetは   |   広告   |   お問い合わせ   |   プライバシーポリシー   |   データシートへのリンク    |   リンク交換   |   メーカーリスト
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