 |
công cụ tìm kiếm bảng dữ liệu linh kiện điện tử |
|
|
công cụ tìm kiếm bảng dữ liệu linh kiện điện tử |
|
ST95HF bảng dữ liệu(PDF) 43 Page - STMicroelectronics |
|
|
|||||||||||||||||||||||||||||
ST95HF bảng dữ liệu(HTML) 43 Page - STMicroelectronics |
|
|
43 / 93 page  DocID025630 Rev 4 43/93 ST95HF Commands 92 5.11 Write Register (WrReg) command (0x09) description The Write Register (WRREG) command (0x09) is used to: • set the Analog Register Configuration address index value before reading or overwriting the Analog Register Configuration register (ARC_B) value • set the Analog Register Configuration register (ACC_A) value – Bits [7:6] are ST Reserved and must be set to ‘0’ – Bits [5:4] set the Demodulator Sensitivity (‘00’ = AM 10% or ‘10’ = AM 100%) – Bits [3:0] set the Load Modulation Index (‘0001’ = minimum load modulation, ‘0111’ = default value, ‘1111’ = maximum load modulation). The user can adjust this value to better fit his application. • set the Timer Window (TimerW) value used to improve ST95HF demodulation when communicating with ISO/IEC 14443 Type A tags • set the AutoDetect Filter used to help synchronization of ST95HF with ISO/IEC 18092 tags • configure the HF2RF bit(a) to manage ICC RF (VPS_TX) consumption in Ready state 5.11.1 Improving RF performance Adjusting the Modulation Index and Receiver Gain parameters in Reader mode or the Load Modulation Index and Demodulator Sensitivity parameters in Card Emulation mode helps improve application behavior. Modulation Index and Receiver Gain parameters for Reader mode The default values of these parameters (Table 35) are set by the PROTOCOLSELECT command, but they can be overwritten using the Write Register (WRREG) command (0x09). Table 31 and Table 32 list possible values for the Modulation Index and Receiver Gain parameters, respectively. This new configuration is valid until a new PROTOCOLSELECT or Write Register (of register ARC_B) command is executed. Register values are cleared at power off. a. When the HF2RF bit is ‘0’, Reader mode is possible (default mode). When set to ‘1’, VPS_TX power consumption is reduced (Ready mode). |
|
Link URL |
| Cho đến nay ALLDATASHEET có giúp ích cho doanh nghiệp của bạn hay không? [ DONATE ] |
Alldatasheet là | Quảng cáo | Liên lạc với chúng tôi | Chính sách bảo mật | Liên kết đến bảng dữ liệu | Trao đổi link | Tìm kiếm theo nhà sản xuất All Rights Reserved©Alldatasheet.com |
| 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 |
Vietnamese ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
