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| 型號： | 73S1210F-68MR/F/PH |
| 廠商： | Maxim Integrated |
| 文件頁數(shù)： | 62/126頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC SOC SMART CARD READER 68QFN |
| 標(biāo)準(zhǔn)包裝： | 2,500 |
| 系列： | * |
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73S1210F Data Sheet
DS_1210F_001
40
Rev. 1.4
1.7.6
UART
The 80515 core of the 73S1210F includes two separate UARTs that can be programmed to communicate
with a host. The 73S1210F can only connect one UART at a time since there is only one set of TX and
Rx pins. The MISCtl0 register is used to select which UART is connected to the TX and RX pins. Each
UART has a different set of operating modes that the user can select according to their needs. The
UART is a dedicated 2-wire serial interface, which can communicate with an external host processor at
up to 115,200 bits/s. The TX and RX pins operate at the VDD supply voltage levels and should never
exceed 3.6V. The operation of each pin is as follows:
RX: Serial input data is applied at this pin. Conforming to RS-232 standard, the bytes are input LSB first.
The voltage applied at RX must not exceed 3.6V.
TX: This pin is used to output the serial data. The bytes are output LSB first.
The 73S1210F has several UART-related read/write registers. All UART transfers are programmable for
parity enable, parity select, 2 stop bits/1 stop bit and XON/XOFF options for variable communication baud
shows how the baud rates are calculated.
Table 33: UART Modes
UART 0
UART 1
Mode 0
N/A
Start bit, 8 data bits, parity, stop bit, variable
baud rate (internal baud rate generator).
Mode 1
Start bit, 8 data bits, stop bit, variable
baud rate (internal baud rate generator
or timer 1).
Start bit, 8 data bits, stop bit, variable baud
rate (internal baud rate generator).
Mode 2
Start bit, 8 data bits, parity, stop bit, fixed
baud rate 1/32 or 1/64 of fCKMPU.
N/A
Mode 3
Start bit, 8 data bits, parity, stop bit,
variable baud rate (internal baud rate
generator or timer 1).
N/A
Note: Parity of serial data is available through the P flag of the accumulator. Seven-bit serial modes with
parity, such as those used by the FLAG protocol, can be simulated by setting and reading bit 7 of 8-bit
output data. Seven-bit serial modes without parity can be simulated by setting bit 7 to a constant 1. 8-bit
serial modes with parity can be simulated by setting and reading the 9th bit, using the control bits
S0CON3 and S1CON3 in the S0COn and S1CON SFRs.
Table 34: Baud Rate Generation
Using Timer 1
Using Internal Baud Rate Generator
Serial Interface 0
2
smod
2
* fCKMPU/ (384 * (256-TH1))
smod * f
CKMPU/(64 * (2
10-S0REL))
Serial Interface 1
N/A
fCKMPU/(32 * (2
10-S1REL))
Note: S0REL (9:0) and S1REL (9:0) are 10-bit values derived by combining bits from the respective timer
reload registers SxRELH (bits 1:0) and SxRELL (bits 7:0). TH1 is the high byte of timer 1. The SMOD bit
is located in the PCON SFR.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 73S1210F-EB | 功能描述:開發(fā)板和工具包 - 8051 73S1210F Eval Brd (Doc. Cd, Cable) RoHS:否 制造商:Silicon Labs 產(chǎn)品:Development Kits 工具用于評估:C8051F960, Si7005 核心: 接口類型:USB 工作電源電壓: |
| 73S1210F-EB-Lite | 功能描述:開發(fā)板和工具包 - 8051 73S1210F Eval Brd Lite w/Doc Cd, Cable RoHS:否 制造商:Silicon Labs 產(chǎn)品:Development Kits 工具用于評估:C8051F960, Si7005 核心: 接口類型:USB 工作電源電壓: |
| 73S1210F-EB-LiteMS | 功能描述:開發(fā)板和工具包 - 8051 73S1210F Eval Brd Lite + Multi Sam RoHS:否 制造商:Silicon Labs 產(chǎn)品:Development Kits 工具用于評估:C8051F960, Si7005 核心: 接口類型:USB 工作電源電壓: |
| 73S1215F | 制造商:TERIDIAN 制造商全稱:TERIDIAN 功能描述:80515 System-on-Chip with USB, ISO 7816 / EMV, PINpad and More |
| 73S1215F-44IM/F | 功能描述:8位微控制器 -MCU 80515 SoC w/USB & PINpad RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) 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(fēng)格:SMD/SMT |
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