MC6840CP Motorola, MC6840CP Datasheet
MC6840CP
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MC6840CP Summary of contents
Page 1
... The device may be used for square duration, and pulse width modul~?~’’’*,., ~ Order this document by MC6840/D MC6840 .!,. A),,),, l.~:~ :.*L~\,\. ,,.l.,.,$.. , t,., ~ , *:~\ ,:::’~” ,<$,+ ){t t,$.~ t.+ \ “:tt+.:?.,:t:’i’ \.:?,\\, + , ,,,. ,;&~ .’\’ :,~>.,,, .~...~. ~:,~:;, ~<~r ..+ ,.,,. .+ measure- ~ L.4!:s+” .<\;: \ *Y>:” *. ~.\\,\. *;L* “- - ’. ~.t.:~,,, .$ ‘$tt<v ,>~+ MOTOROLA @ DS9802R3 = ...
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... Solving equations (1) and (2) for K gives: where constant pertaining to the particular part. K can be determined equilibrium) for a known TA, Using this value of K, the values of PD and TJ can be obtained (1) and (2) iteratively for any value of TA MOTOROLA 2 BLOCK DIAGRAM I Rea,ster I re, TJ, in ‘C can be obtained from: ...
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... MC6BB40 Unit Max Min Max — 0.666. O.w” ns – tcyc E + tsu + thd – tcVcE+ tsu + thd ns – – — — — — — — — 175 ns — — — — 460 Mo ns — 450 MO ns — 1.35 1,0 Us — 0.9 07 MOTOROLA to 3 ...
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... Read Data Ime Hold I 21 Write Data Hold Time ! :ral Output Data Delay Time sral Input Data Setup ~!, FI$URE2 – INPUT PULSE WIDTH LOW ..,\:. ;?:, ‘*T: * .*} MOTOROLA 4 z, a,, I“” LGa 1, ” d, tcvc PWEL PWEH tr, tf tAH E tAS E tcs tCH tDHR1201W01201~ ...
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... FIGURE4 – INPUT SETUP AND HOLD TIMES NOT E: Timing measurements are referenced MC6840 DS9802R3 ‘esrpO’”’T L 300F I — to and from a low voltage of 0.8 volts and a high voltage FIGURE 5 – OUTPUT DELAY of 2.0 volts, unless otherwise noted. MOTOROLA 5 ...
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... PTM. INTERRUPT REQUEST (~Q) – The active Request signal is normallv tied directly (or through terrupt circuitry) to the ~ input of the MOTOROLA 6 DEVICE OPERATION family “open drain” The three mits other similar and in several a wire-OR configuration. and syn- Them line is activated terrupt ...
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... It can either the.int~,~clock (Enable s,::;:? $tito the divide-by-eight mode on DMA), Control Register Timer Latch #3 to insure proper ‘f”’ rrupt Control (See Table 3) I CR30 Timer #3 Clock Control O T3 Clock is not prescaled 1 T3 Clock is prescaled bv – B x=3 MOTOROLA 3 7 ...
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... Pulse Width Comparison Single Shot Mode Frequency Comparison Single Shot Mode Pulse Width Comparison MOTOROLA 8 An interrupt in i.e., External bits (1 will also be cleared common func- vided that the Status only its cor- the interrupt Register-Read to prevent #1 (CR11 ) selects ...
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... All the internal Independent 01, 02, Continuous or IS ac- or Dual 8-bit produce a and a single and Register If this bit of the IS high the a are the in this data and signals in (unless comparison in typical MOTOROLA 9 ...
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... Any of the timers in the PTM ~$$&’”program- med to operate in a continuous mode ~~h~,~tr~ bits 3 and 5 of the corresponding co~~~o~k$$ster. MOTOROLA 10 —— that the timer wave or a variable effectively in a the Timer Output, by using Control Register ...
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... GI RESET RSO 10 RS1 RS2 R CS1 vc CTO Counter Enable Interrupt Flag sat (1) Flip-Flop Reset (CE) W+R+I al Before TO TO Before ~1 W+R+I W+ R+I+G Et Before TO W+ R+I+G TO Before ~t MOTOROLA 13 ...
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... Pulse Width t qj>~,, ; i~, <,:.-.,,. ~:<$.,F >,,>,, ‘t.., 1 1 Pulse Width MOTOROLA 12 and Continous generation until of the Single- completed. When of the Gate input (The condition has occurred generated. ) AnV of the timers compare the period are identical, calculations) ...
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... Initialization. The output remains low Mode is changed or nonzero data IS written Latches. Time Outs continue to occur at the end period. MODES 1) Waveforms Timer Output (OX “*Q. @kr.\:27,, .b,;:t. .:6 ~ ,~+s~’. ~;, ?*, <~:;*:> ~ ~(~ \\ ,,,>:! $ ,<~~ Interrupt and is not 16-bit), the or after until the Into MOTOROLA 11 ...
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... Motorola products are not authorized for use as components under its patent rights intended for surgical implant into the body or intended to support or sustain life. Buver agrees to notify Motorola of anv such intended end use whereupon Motorola shall determine trademarks of Motorola, Inc ...