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參數資料
型號: 73S1209F-44IM/F
廠商: TERIDIAN SEMICONDUCTOR CORP
元件分類: 電源管理
英文描述: POWER SUPPLY MANAGEMENT CKT, QCC44
封裝: LEAD FREE, QFN-44
文件頁數: 121/123頁
文件大小: 1385K
代理商: 73S1209F-44IM/F
DS_1209F_004
73S1209F Data Sheet
Rev. 1.2
97
CRC MS Value Registers (CRCMsB): 0xFE14
0xFF, (CRCLsB): 0xFE15
0xFF
Table 94: The CRCMsB Register
MSB
LSB
CRC.15
CRC.14
CRC.13
CRC.12
CRC.11
CRC.10
CRC.9
CRC.8
Table 95: The CRCLsB Register
MSB
LSB
CRC.7
CRC.6
CRC.5
CRC.4
CRC.3
CRC.2
CRC.1
CRC.0
The 16-bit CRC value forms the TX CRC word in TX mode (write value) and the RX CRC in RX mode
(read value). The initial value of CRC to be used when generating a CRC to be transmitted at the end of
a message (after the last TX byte is sent) when enabled in T=1 mode. Should be reloaded at the
beginning of every message to be transmitted. When using CRC, the both CRC registers should be
initialized to FF. When using LRC the CRCLsB Value register should be loaded to 00. When receiving a
message, the firmware should load this with the initial value and then read this register to get the final
value at the end of the message. These registers need to be reloaded for each new message to be
received. When in LRC mode, bits (7:0) are used and bits (15:8) are undefined. During LRC/CRC
checking and generation, this register is updated with the current value and can be read to aid in
debugging. This information will be transmitted to the smart card using the timing specified by the Guard
Time register. When checking CRC/LRC on an incoming message (CRC/LRC is checked against the
data and CRC/LRC), the firmware reads the final value after the message has been received and
determines if an error occurred (= 0x1D0F (CRC_ no error, else error; = 0 (LRC) no error, else error).
When a message is received, the CRC/LRC is stored in the FIFO. The polynomial used to generate and
check CRC is x
16 + x12+ x5 +1. When in indirect convention, the CRC is generated prior to the conversion
into indirect convention. When in indirect convention, the CRC is checked after the conversion out of
indirect convention. For a given message, the CRC generated (and readable from this register) will be
the same whether indirect or direct convention is used to transmit the data to the smart card. The
CRCLsB / CRCMsB registers will be updated with CRC/LRC whenever bits are being received or
transmitted from/to the smart card (even if CRCEN is not set and in mode T1). They are available to the
firmware to use if desired.
相關PDF資料
PDF描述
73S1210F-44IMR/F 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, QCC44
73S1210F-68IM/F/P 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, QCC68
73S1210F-44IMR/F/P 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, QCC44
73S1210F-68IMR/F/P 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, QCC68
73S1210F-68IM/F 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, QCC68
相關代理商/技術參數
參數描述
73S1209F-44IMR/F 功能描述:8位微控制器 -MCU Contained 80515-SoC Serial Hst Interface RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數據總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數據 RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風格:SMD/SMT
73S1209F-44IMR/F/P 功能描述:IC SMART CARD READER PROG 44-QFN RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器, 系列:73S12xx 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:260 系列:73S12xx 核心處理器:80515 芯體尺寸:8-位 速度:24MHz 連通性:I²C,智能卡,UART/USART,USB 外圍設備:LED,POR,WDT 輸入/輸出數:9 程序存儲器容量:64KB(64K x 8) 程序存儲器類型:閃存 EEPROM 大小:- RAM 容量:2K x 8 電壓 - 電源 (Vcc/Vdd):2.7 V ~ 5.5 V 數據轉換器:- 振蕩器型:內部 工作溫度:-40°C ~ 85°C 封裝/外殼:68-VFQFN 裸露焊盤 包裝:管件
73S1209F-44M/F/PD 功能描述:8位微控制器 -MCU RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數據總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數據 RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風格:SMD/SMT
73S1209F-44MR/F/PD 功能描述:8位微控制器 -MCU RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數據總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數據 RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風格:SMD/SMT
73S1209F-68IM/F 功能描述:8位微控制器 -MCU Contained 80515-Soc Serial Hst Interface RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數據總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數據 RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風格:SMD/SMT
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