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參數(shù)資料
型號: MC68L11K3FN1
廠商: MOTOROLA INC
元件分類: 微控制器/微處理器
英文描述: 8-BIT MICROCONTROLLER
中文描述: 8-BIT, MROM, 1 MHz, MICROCONTROLLER, PQCC84
封裝: PLASTIC, LCC-84
文件頁數(shù): 49/80頁
文件大?。?/td> 420K
代理商: MC68L11K3FN1
M68HC11 K Series
MC68HC11KTS/D
MOTOROLA
49
7 Serial Communications Interface
The SCI, a universal asynchronous receiver transmitter (UART) serial communications interface, is one
of two independent serial I/O subsystems in M68HC11 K-series MCUs. Rearranging registers and con-
trol bits used in previous M68HC11 family devices has enhanced the existing SCI system and added
new features, which include the following:
A 13-bit modulus prescaler that allows greater baud rate control
A new idle mode detect, independent of preceding serial data
A receiver active flag
Hardware parity for both transmitter and receiver
The enhanced baud rate generator is shown in the following diagram. Refer to
Table 7
for standard val-
ues.
Figure 9 SCI Baud Generator Circuit Diagram
13-BIT COUNTER
13-BIT COMPARE
SCBDH/L
SCI BAUD CONTROL
INTERNAL
PHASE 2 CLOCK
=
÷
2
SYNCH
÷
16
RECEIVER
BAUD RATE
CLOCK
TRANSMITTER
BAUD RATE
CLOCK
EXTAL
RESET
相關PDF資料
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相關代理商/技術參數(shù)
參數(shù)描述
MC68L711E9FN2 制造商:Rochester Electronics LLC 功能描述:- Bulk
MC68L711E9FNE2 功能描述:8位微控制器 -MCU 8B MCU LO VOLTAGE 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 安裝風格:SMD/SMT
MC68L711E9FU2 制造商:Rochester Electronics LLC 功能描述: 制造商:Freescale Semiconductor 功能描述:
MC68L711M2CFU 制造商:Freescale Semiconductor 功能描述:
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