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NS486SXF 数据表(PDF) 39 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
部件名 NS486SXF
功能描述  NS486TMSXF Optimized 32-Bit 486-Class Controller with On-Chip Peripherals for Embedded Systems
PDF  44 Pages
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制造商  NSC [National Semiconductor (TI)]
网页  http://www.national.com
标志 NSC - National Semiconductor (TI)

NS486SXF 数据表(HTML) 39 Page - National Semiconductor (TI)

Back Button NS486SXF Datasheet HTML 35Page - National Semiconductor (TI) NS486SXF Datasheet HTML 36Page - National Semiconductor (TI) NS486SXF Datasheet HTML 37Page - National Semiconductor (TI) NS486SXF Datasheet HTML 38Page - National Semiconductor (TI) NS486SXF Datasheet HTML 39Page - National Semiconductor (TI) NS486SXF Datasheet HTML 40Page - National Semiconductor (TI) NS486SXF Datasheet HTML 41Page - National Semiconductor (TI) NS486SXF Datasheet HTML 42Page - National Semiconductor (TI) NS486SXF Datasheet HTML 43Page - National Semiconductor (TI) Next Button
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30 Device Specifications (Continued)
Symbol
Parameter
Min
Max
Units
tSINT
Delay from Stop Bit to Set Interrupt
2
BAUDOUT Cycles
tSTI
Delay from Start Bit to IRQ
8
BAUDOUT Cycles
tSI
Delay from Initial Write to IRQ
16
24
BAUDOUT Cycles
tIRS
Delay from IRQ Reset to Tx Start
8
24
BAUDOUT Cycles
tMDO
Delay from Write to Output
40
ns
tRIM
Delay to Reset IRQA from Read
78
ns
tSIM
Delay to Set IRQ from Modem Input
40
ns
BAUDOUT Cycle e
Input Clock Frequency
16 x Baudrate Divisor
Input Clock Frequency e
OSCX1 Frequency
UART Clock Divisor
Registers Divisor Latch Holds Baudrate Divisor
EF70 holds UART Clock Divisor
TLEE12514 – 28
TLEE12514 – 29
FIGURE 3-18 UART IRQ Timing
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