| P2.0 | 2PORT |
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| P2.7 |
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| ADDRESS DECODER |
| DPH |
| CONTROL | SIGNAL | R/W | SIGNAL | DIAGRAM(MSM83C154S) |
ALE | TIMING | PCON |
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| SPECIAL | |||
| P0.0 | 0 |
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| DPL |
| PLA |
| FUNCTION |
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| PORT |
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| REGISTER |
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| PCHL | PCLL | 16K WORDS x 8BITS |
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| ADDRESS |
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| P0.7 |
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| DECODER |
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XTAL1 |
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| PCH | PCL |
| SENSE AMP | SP |
| IR |
| AIR |
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XTAL2 |
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| andOSC | IOCON |
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PSEN |
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EA |
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RESET |
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| T2CON | TL2 | TH2 | R/W AMP |
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| ACC | TR2 | TR1 |
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P1.0 |
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| RAM |
| RAMDP |
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1 |
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| RCAP2L | RCAP2H | 256 WORDS |
| PSW |
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| BR |
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| TIMER/ | x 8BITS |
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| PORT |
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| ALU |
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| COUNTER 2 |
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P1.7 |
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P3.0 | 3 |
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| PORT | TH1 | TL1 | TH0 | TL0 | TMOD | TCON | IE | IP | SBUF(T) | SBUF(R) | SCON |
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P3.7 |
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| TIMER/COUNTER 0 & 1 |
| INTERRUPT |
| SERIAL IO |
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261 |
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¡ Semiconductor
MSM80C154S/83C154S
