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參數資料
型號: 73S1209F-44IMR/F
廠商: MAXIM INTEGRATED PRODUCTS INC
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: 95/123頁
文件大小: 1385K
代理商: 73S1209F-44IMR/F
DS_1209F_004
73S1209F Data Sheet
Rev. 1.2
73
PLL
ETU Divider
12 bits
FI Decoder
DIV
by
2
ETUCLK
CLK
DIV
by
2
SCLK
Pre-Scaler
6 bits
Pre-Scaler
6 bits
F/D Register
SCCLK(5:0)
SCSCLK(5:0)
MSCLK
MSCLKE
MCLK =
96MHz
FDReg(3:0)
FDReg(7:4)
9926
1/744
3.69M
1/13
7.38M
3.69M
7.38M
Defaults
in Italics
SCSel(3:2)
1/13
SYNC
CENTER
EDGE
Figure 17: Smart Card CLK and ETU Generation
There are two, two-byte FIFOs that are used to buffer transmit and receive data. During a T=0 processing,
if a parity error is detected by the 73S1209F during message reception, an error signal (BREAK) will be
generated to the smart card. The byte received will be discarded and the firmware notified of the error.
Break generation and receive byte dropping can be disabled under firmware control. During the
transmission of a byte, if an error signal (BREAK) is detected, the last byte is retransmitted again and the
firmware notified. Retransmission can be disabled by firmware. When a correct byte is received, an
interrupt is generated to the firmware, which then reads the byte from the receive FIFO. Receive overruns
are detected by the hardware and reported via an interrupt. During transmission of a message, the
firmware will write bytes into the transmit FIFO. The hardware will send them to the smart card. When the
last byte of a message has been written, the firmware will need to set the LASTTX bit in the STXCtl SFR.
This will cause the hardware to insert the CRC/LRC if in a T=1 protocol mode. CRC/LRC
generation/checking is only provided during T=1 processing. Firmware will need to instruct the smart
function to go into receive mode after this last transmit data byte if it expects a response from the smart
card. At the end of the smart card response, the firmware will put the interface back into transmit mode if
appropriate.
The hardware can check for the following card-related timeouts:
Character Waiting Time (CWT)
Block Waiting Time (BWT)
Initial Waiting Time (IWT)
The firmware will load the Wait Time registers with the appropriate value for the operating mode at the
appropriate time. Figure 18 shows the guard, block, wait and ATR time definitions. If a timeout occurs,
an interrupt will be generated and the firmware can take appropriate recovery steps. Support is provided
for adding additional guard times between characters using the Extra Guard Time register (EGT) and
between the last byte received by the 73S1209F and the first byte transmitted by the 73S1209F using the
相關PDF資料
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73S1209F-68IMR/F POWER SUPPLY MANAGEMENT CKT, QCC68
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相關代理商/技術參數
參數描述
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
73S1209F-68IM/F/P 功能描述:IC SMART CARD READER PROG 68-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-68IMR/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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