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5. UART Usage
The PCI-FRM01 has UART (9600BPS, 1 stop, 1 start, 8 data bit, no parity).
I/O Address
Function
Offset
UART
(1) Data Buffer
(2) Baud rate generator
40Mhz
Initial Value : x"82"
(3) Control
31
Bit
Name
0
1
31 - 2
Reserved
(4) STATUS
31
Bit
Name
0
1
2
Register
60h
Data Buffer
64h
Baud
68h
Control
6Ch
Status
UART
RE
Receiver Interrupt Enable
TE
Transmitter Interrupt Enable
For future use
UART
Reserved
RI
Receive Interrupt
RB
Receive Busy
PE
Parity Error(Unused)
2005 DAQ system, all rights reserved.
PCI-FRM01 Register Level Application Guide
Transmit Data(Write) / Received Data(Read)
Baud generator x"82"
Control Register
Status Register
Control Register Bit Position & Usage
Reserved
Description
STATUS Register Bit Position & Usage
Description
Application Note
Description
8
7
6
5
4
3
Default Value
All '0'
8
7
6
5
4
3
TB
TI
FE
Default Value
http://www.daqsystem.com
(AN241)
2
1
0
TE
RE
'0'
'0'
2
1
0
PE
RB
RI
'0'
'0'
'0'
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