Wrapper configuration register – Digi NS9215 User Manual
Page 391
. . . . .
S E R I A L C O N T R O L M O D U L E : U A R T
Wrapper Configuration register
www.digiembedded.com
391
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
W r a p p e r C o n f i g u r a t i o n r e g i s t e r
Address: 9001_1000 / 9001_9000 / 9002_1000 / 9002_9000
This is the primary Wrapper Configuration register.
Register
Register bit
assignment
9001_1114
UART Line Status
9001_1118
UART Modem Status
9001_111C
UART Scratch
Address
Register
13
12
11
10
9
8
7
6
5
4
3
2
1
0
15
14
31
29
28
27
26
25
24
23
22
21
20
19
18
17
16
30
TXFLOW
Reserv
ed
RXCL
OSE
RXBYTES
RL
RS485OFF
RS485ON
DTREN
RXFL
USH
RXEN TXEN MODE
Reserved
RTSEN
TXFL
USH
Reserv
ed
RTS
Bits
Access
Mnemonic
Reset
Description
D31
N/A
Reserved
N/A
N/A
D30
R/W
RXEN
0
0
Disable wrapper function
1
Enable wrapper to process receive characters
D29
R/W
TXEN
0
0
Disable transmitter function
1
Enable wrapper to process transmit characters
D28
R/W
MODE
0
Selects either UART or HDLC mode. This bit applies
only to UART3.
0
UART mode
1
HDLC mode
D27:20
N/A
Reserved
N/A
N/A
D19
R/W
RTSEN
0
Indicates which signal is output: RTS or RS485
transceiver control.
0
RTS
1
RS485 transceiver control
D18
R/W
DTREN
0
Indicates which signal is output: DTR or TX baud clock.
0
DTR
1
TX baud clock