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T89C5115 Datasheet(PDF) 9 Page - ATMEL Corporation |
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T89C5115 Datasheet(HTML) 9 Page - ATMEL Corporation |
9 / 105 page 9 T89C5115 4128A–8051–04/02 SFR Mapping The Special Function Registers (SFRs) of the T89C5115 fall into the following categories: Table 3. C51CoreSFRs Mnemonic Add Name 765432 10 ACC E0h Accumulator ––––– ––– B F0h B Register ––––– ––– PSW D0h Program Status Word CY AC F0 RS1 RS0 OV F1 P SP 81h Stack Pointer ––––– ––– DPL 82h Data Pointer Low byte LSB of DPTR ––––– ––– DPH 83h Data Pointer High byte MSB of DPTR ––––– ––– Table 4. I/O Port SFRs Mnemonic Add Name 765432 10 P1 90h Port 1 ––––– ––– P2 A0h Port 2 (x2) ––––– ––– P3 B0h Port 3 ––––– ––– P4 C0h Port 4 (x2) ––––– ––– Table 5. Timers SFRs Mnemonic Add Name 765432 10 TH0 8Ch Timer/Counter 0 High byte ––––– ––– TL0 8Ah Timer/Counter 0 Low byte ––––– ––– TH1 8Dh Timer/Counter 1 High byte ––––– ––– TL1 8Bh Timer/Counter 1 Low byte ––––– ––– TH2 CDh Timer/Counter 2 High byte ––––– ––– TL2 CCh Timer/Counter 2 Low byte ––––– ––– TCON 88h Timer/Counter 0 and 1 control TF1 TR1 TF0 TR0 IE1 IT1 IE0 IT0 TMOD 89h Timer/Counter 0 and 1 Modes GATE1 C/T1# M11 M01 GATE0 C/T0# M10 M00 |
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