AP522 ACROPACK
USER
’S MANUAL
Acromag, Inc. Tel: 248-295-0310
- 37 - http://www.acromag.com
- 37 -
www.acromag.com
B
0 1
0 0
0 1
1 0
1 1
0 0
0 1
1 0
1 1
8
16
24
28
16
8
24
30
16C650A, 16L651
C
1 0
0 0
0 1
1 0
1 1
0 0
0 1
1 0
1 1
8
16
56
60
8
16
32
56
16C654
D
1 1
X X
X X
Prog.
via
RXTRIG
reg.
Prog.
via
TXTRIG
reg.
16L2752, 16L2750,
16C2852, 16C850,
16C854, 16C864
3.4.7 Line Control Register (LCR)
–
Read/Write
The Line Control Register is used to specify the asynchronous data
communication format. The word length, the number of stop bits, and the
parity are selected by writing the appropriate bits in this register. The
individual bits of this register control the format of the data character as
follows:
Table 3.15 Line Control Register
LCR
Bit
FUNCTION PROGRAMMING
1,0
Word
Length
Select
0 0 = 5 Data Bits 0 1 = 6 Data Bits
1 0 = 7 Data Bits 1 1 = 8 Data Bits
2
Stop Bit
0 = 1 Stop Bit
