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NSC800D 数据表(PDF) 18 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
部件名 NSC800D
功能描述  NSC800TM High-Performance Low-Power CMOS Microprocessor
PDF  76 Pages
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制造商  NSC [National Semiconductor (TI)]
网页  http://www.national.com
标志 NSC - National Semiconductor (TI)

NSC800D 数据表(HTML) 18 Page - National Semiconductor (TI)

Back Button NSC800D Datasheet HTML 14Page - National Semiconductor (TI) NSC800D Datasheet HTML 15Page - National Semiconductor (TI) NSC800D Datasheet HTML 16Page - National Semiconductor (TI) NSC800D Datasheet HTML 17Page - National Semiconductor (TI) NSC800D Datasheet HTML 18Page - National Semiconductor (TI) NSC800D Datasheet HTML 19Page - National Semiconductor (TI) NSC800D Datasheet HTML 20Page - National Semiconductor (TI) NSC800D Datasheet HTML 21Page - National Semiconductor (TI) NSC800D Datasheet HTML 22Page - National Semiconductor (TI) Next Button
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90 Timing and Control (Continued)
Figure 10 shows the timing for memory read (other than
opcode fetchs) and write cycles with and without a wait
state The RD stobe is widened by
t
2
(half the machine
state) for memory reads so that the actual latching of the
input data occurs later
Figure 11 shows the timing for input and output cycles with
and without wait states The CPU automatically inserts one
wait state into each IO instruction to allow sufficient time
for an IO port to decode the address
TLC5171 – 19
FIGURE 11a Input and Output Cycles without WAIT States
TLC5171 – 20
WAIT state automatically inserted during IO operation
FIGURE 11b Input and Output Cycles with WAIT States
18



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