VISUAL 100 - Figure 2-1 Byte Configurations

VISUAL TECHNOLOGY INCORPORATED, 540 MAIN STREET, TEWKSBURY, MA 01876
Other communication interface features include:
• Local copy capability for applications requiring the "echoing" of transmitted
data (see Section 3.2.2.16)
• 16 data rates ranging from 50 to 19,200 baud
• Independent transmit/receive rates
• Odd, even, or no parity, generated on transmit and checked on receive
• 7 or 8 bit ASC 11 Code. (See Figure 2-1 for various byte configurations.)
BYTE DESCRIPTION
BYTE CONFIGURATION
LSB
MSB
7 BIT WITH NO PARITY
I
s
I
1
I
2
I
3
I
4
I
5
I
6
I
7
I
STOP
LSB
7 BIT WITH PARITY
I
s
I
1
I
2
I
3
I
4
I
5
I
6
I
LSB
8 BIT WITH NO PARITY
I
sl
I
2
I
3
1
4
I
5
I
6
I
8 BIT WITH PARITY
LSB
(MARK) l
s
I
1
I
2
I
3
I
4
1
5
I
6
I
(SPACE)
S START BIT, ALWAYS= 0
LSB LEAST SIGNIFICANT DATA BIT
MSB MOST SIGNIFICANT DATA BIT
(always space, with 8 bit code)
MSB
7
I p I
MSB
7
I a I
MSB
7
I a I
STOP STOP BIT(S), 2 AT 110 BAUD OR LESS,
1 AT HIGHER THAN 110 BAUD
P PARITY BIT, ODD OR EVEN
Figure 2-1 Byte Configurations
6
STOP
STOP
p I STOP