SCD1284 INTEL [Intel Corporation], SCD1284 Datasheet - Page 72

• Manufacturer Part Number: SCD1284
• Description: IEEE 1284-Compatible Parallel Interface Controller with Two High-Speed Asynchronous Serial Ports
• Manufacturer: INTEL [Intel Corporation]

CD1284 — IEEE 1284-Compatible Parallel Interface Controller
Figure 10. CD1284 Transmit Character Processing (Continued)
5.9
72
Note:
Baud Rate Generation
The CD1284 provides a separate baud rate generator both directions of each channel. Each receive
and transmit baud rate generator can be driven from one of five available clock sources. The source
being used is selected by the value in the R/TCOR. The selected clock is divided by the value in the
R/TBPR to yield the desired bit rate.
R/T is used as a register abbreviation indicating Receive / Transmit followed by the register
acronym.
The five clock sources are:
Clk0
Clk1
Clk2
Clk3
Clk4
System clock
System clock
System clock
System clock
System clock
N
8, R/TCOR
32, R/TCOR
128, R/TCOR
512, R/TCOR
2048,
PERFORM CR, NL
PROCESSING AS
TRANSLATION
SEND CHAR
SPECIFIED
ENABLED
Y
CHAR
EXIT
D
?
0
1
2
3
E
Datasheet