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AT89C5131A-RDTUM 데이터시트(PDF) 22 Page - ATMEL Corporation |
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AT89C5131A-RDTUM 데이터시트(HTML) 22 Page - ATMEL Corporation |
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22 / 188 page ![]() 22 4337K–USB–04/08 AT89C5130A/31A-M The Special Function Registers (SFRs) of the AT89C5131 fall into the following categories: Table 6-2. C51 Core SFRs Table 6-3. I/O Port SFRs Mnemonic Add Name 7 6 5 4 3 2 1 0 ACC E0h Accumulator B F0h B Register PSW D0h Program Status Word SP 81h Stack Pointer LSB of SPX DPL 82h Data Pointer Low byte LSB of DPTR DPH 83h Data Pointer High byte MSB of DPTR Mnemonic Add Name 7 6 5 4 3 2 1 0 P0 80h Port 0 P1 90h Port 1 P2 A0h Port 2 P3 B0h Port 3 P4 C0h Port 4 (2bits) Table 6-4. Timer SFR’s Mnemonic Add Name 7 6 5 4 3 2 1 0 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 T2CON C8h Timer/Counter 2 control TF2 EXF2 RCLK TCLK EXEN2 TR2 C/T2# CP/RL2# T2MOD C9h Timer/Counter 2 Mode T2OE DCEN |
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