參數(shù)資料
型號: HCS405
廠商: Microchip Technology Inc.
英文描述: Code Hopping Encoder(KeeLoq 碼編碼器)
中文描述: 跳碼編碼器(而Keeloq碼編碼器)
文件頁數(shù): 77/170頁
文件大?。?/td> 4191K
代理商: HCS405
2003 Microchip Technology Inc.
Preliminary
DS40300C-page 75
PIC16F62X
FIGURE 12-5:
USART TRANSMIT BLOCK DIAGRAM
Steps to follow when setting up an Asynchronous
Transmission:
1.
Initialize the SPBRG register for the appropriate
baud rate. If a high speed baud rate is desired,
set bit BRGH. (Section 12.1)
2.
Enable the asynchronous serial port by clearing
bit SYNC and setting bit SPEN.
3.
If interrupts are desired, then set enable bit
TXIE.
4.
If 9-bit transmission is desired, then set transmit
bit TX9.
5.
Enable the transmission by setting bit TXEN,
which will also set bit TXIF.
6.
If 9-bit transmission is selected, the ninth bit
should be loaded in bit TX9D.
7.
Load data to the TXREG register (starts
transmission).
FIGURE 12-6:
ASYNCHRONOUS TRANSMISSION
TXIF
TXIE
Interrupt
TXEN
Baud Rate CLK
SPBRG
Baud Rate Generator
TX9D
MSb
(8)
LSb
0
Data Bus
TXREG register
TSR register
TX9
TRMT
SPEN
RB2/TX/CK pin
Pin Buffer
and Control
8
2 2 2
WORD 1
STOP Bit
WORD 1
Transmit Shift Reg
START Bit
Bit 0
Bit 1
Bit 7/8
Write to TXREG
Word 1
BRG output
(shift clock)
RB2/TX/CK (pin)
TXIF bit
(Transmit buffer
reg. empty flag)
TRMT bit
(Transmit shift
reg. empty flag)
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參數(shù)描述
HCS410 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:KEELOQ? Code Hopping Encoder and Transponder 2-bit CRC, 2-bit queue
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HCS410/WM 制造商:未知廠家 制造商全稱:未知廠家 功能描述:HCS410WM Datasheet