參數(shù)資料
型號(hào): MC68HC11K4VFU4
廠商: MOTOROLA INC
元件分類: 微控制器/微處理器
英文描述: Technical Summary 8-Bit Microcontroller
中文描述: 8-BIT, MROM, 4 MHz, MICROCONTROLLER, PQFP80
封裝: QFP-80
文件頁(yè)數(shù): 49/80頁(yè)
文件大小: 420K
代理商: MC68HC11K4VFU4
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(guān)PDF資料
PDF描述
MC68HC11K4VFN2 Technical Summary 8-Bit Microcontroller
MC68HC11K1CFN2 8-BIT MICROCONTROLLER
MC68HC11K1MFN2 8-BIT MICROCONTROLLER
MC68HC11K1MFN3 Aluminum Electrolytic Radial Lead 5mm Length Capacitor; Capacitance: 33uF; Voltage: 50V; Case Size: 8x5 mm; Packaging: Bulk
MC68HC11K1MFN4 8-BIT MICROCONTROLLER
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MC68HC11KA0 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:CONFIG Register Programming for EEPROM-based M68HC11 Microcontrollers
MC68HC11KA0CFN2 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller
MC68HC11KA0CFN3 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller
MC68HC11KA0CFN4 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller
MC68HC11KA0CFU2 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller