NS486SXF Datasheet, PDF (38/44 Pages) National Semiconductor (TI) – NS486TMSXF Optimized 32-Bit 486-Class Controller with On-Chip Peripherals for Embedded Systems

3 0 Device Specifications (Continued)
3 3 5 6 FIFO UART
Symbol
Parameter
Condition
Min
Max
Units
D
OSC Clock Divider
1
63
CLKs
D
Baud Divisor
1
65535
CLKs
t_BHD
t_BLD
Baud Output Positive Edge Delay
Baud Output Negative Edge Delay
56
ns
56
ns
Symbol
t_IRTXW
t_IRRXW
Parameter
IRTX Pulse Width
IRRX Pulse Width
Condition
Min
1 6 ms
1 6 ms
Max
3 16
6 16
TL EE 12514 – 26
Units
BAUD OUT Cycles
BAUD OUT Cycles
FIGURE 3-17 UART Baud Rate and Infrared Clocks
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38
TL EE 12514 – 27