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T83C5121XXX-ICSIL bảng dữ liệu(PDF) 84 Page - ATMEL Corporation

tên linh kiện T83C5121XXX-ICSIL
Giải thích chi tiết về linh kiện  8-bit Microcontroller with Multiprotocol Smart Card Interface
PDF  115 Pages
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nhà sản xuất  ATMEL [ATMEL Corporation]
Trang chủ  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

T83C5121XXX-ICSIL bảng dữ liệu(HTML) 84 Page - ATMEL Corporation

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A/T8xC5121
4164G–SCR–07/06
Reset Addresses
On reset, the SADDR, SADEN register are initialized to 00h, i.e. the given and broad-
cast addresses are XXXX XXXXb (all don’t care bits). This ensures that the serial port is
backwards compatible with the 80C51 microcontrollers that do not support automatic
address recognition.
UART Output Configuration
Voltage Level
The I/O Ports of UART are powered by the EV
CC Regulator. The voltage of this regulator
can be:
•
Automatically controlled by the microcontroller which adapt the power supply level
versus the OE input voltage level.
•
Set at three defined levels (1.8V, 2.3V or 2.8V)
These configurations are defined with the EVAUTO and VEXT0,VEXT1 Bits of SIOCON
Register.
Output Enable Function
The UART outputs (Tx, T0) can be controlled by the Output Enable input.
The Bits PMOSEN0 and PMOSEN1 in SIOCON Register are used to control this output.
0
1
0
1
0
1
PMOSEN0
PMOSEN0
PMOSEN1
OE
(P3.3)
PMOS Command
(Active at 1)
SFR
Value
0
1



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