DEC VT220 - 2681 DUART: Data Clock Selection Register (DCSR) (Channel A and B)

DCSRA ADDRESS
DCSRB ADDRESS
B7F1 H (WAj
B7F9H /WA)
07
I
06
I
05
I
D3
D2 Dl
00
RECEIVER CLOCK SELECT
TRANSMITIER CLOCK SELEer
I I I
IBAD7 HI .... _------------------t .... (BADO HI
BIT VALUES
BIT
C>-3
OR 4-7
0000
0001
0010
0011
0100
0101
0110
DIll
1000
1001
1010
1011
1101
1110
; 110
1110
1110
1111
111 !
11i1
1111
BAUD RATE SET 1
50
110
1345
200
300
600
1200
1050
2400
4800
7200
9600
3841<
IP4-1 6XI R.CAI
1PS-16XIR.CB,
IP3-16
X
fTxCA)
IP5-l6X(' .CBj
IP4-1 XIRxCAj
IP6-1
XiRxCB)
IP3-1
XITxCAj
IP5-1 X(T.CBj
BAUD
RATE SET 2
75
110
1345
150
300
600
1200
2000
2400
4BOO
1800
9600
192K
IP4-16XiA.CAJ
IP6-16XIAxCBj
IP3-16X(TxCA)
IP5-16
X
iT.CB)
IP4-1 XIAxCAJ
IPS-I XiAxC81
IP3-1
XITxCAI
IP5-1 XiT.CBj
NOTES-
1 AxC AND TxC AAE ALWAYS 16X EXCEPT FOA 1111 CONDITION
2
SET SELECTION MADE BY ACA 81T 7
Figure C-4
2681 DUART: Data Clock
Selection Register (DCSR)
(Channel A and B)
C-4