DAQ PCI-FRM01 Instrukcja Użytkownika Strona 7

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Application Note (AN241)
PCI-FRM01 Register Level Application Guide
2005 DAQ system, all rights reserved. http://www.daqsystem.com
5. UART Usage
PCI-FRM01 9600BPS, 1 stop, 1 start, 8 data bit, no parity 동작을 한다.
UART
Transmit Data(Write) / Received Data(Read)60h
Description
I/O Address
Offset
Function
64h
68h
6Ch
Baud generator x82"
Control Register
Status Register
Data Buffer
Register
Baud
Control
Status
(1) Data Buffer
(2) Baud rate generator
40Mhz 사용
초기값 : x82
(3) Control
01831
Reserved
UART Control Register Bit Position & Usage
234567
RETE
Bit
Name
Description
Default Value
0
RE
수신 인터럽 이네이
0
1
TE
송신 인터럽 이네이
0
31 - 2
Reserved
For future use
All 0
(4) STATUS
831
Reserved
UART STATUS Register Bit Position & Usage
PEFE RIRBTITB
01234567
Bit
Name
Description
Default Value
0
RI
Receive Interrupt
0
1
RB
Receive Busy
0
2
PE
Parity Error(Unused)
0
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