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AT89LP51RB2 Datasheet(PDF) 25 Page - ATMEL Corporation |
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AT89LP51RB2 Datasheet(HTML) 25 Page - ATMEL Corporation |
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25 / 254 page  25 3722A–MICRO–10/11 AT89LP51RB2/RC2/IC2 Preliminary Note: 1. Present on AT89LP51IC2 Only Table 4-2. C51 Core SFRs Mnemonic Add Name 765432 10 ACC E0h Accumulator B F0h B Register PSW D0h Program Status Word CY AC F0 RS1RS0OV F1 P SP 81h Stack Pointer SPX EFh Extended Stack Pointer –––– SP11 SP10 SP9 SP8 DPL 82h Data Pointer Low Byte DPH 83h Data Pointer High Byte DPLB D4h Alternate Data Pointer Low Byte DPHB D5h Alternate Data Pointer High Byte PAGE F6h ERAM Page Register –––– Table 4-3. Digital Signal Processing SFRs Mnemonic Add Name 765432 10 AX E1h Extended Accumulator BX F7h Extended B Register DSPR E2h DSP Control Register MRW1 MRW0 SMLB SMLA CBE1 CBE0 MVCD DPRB FIRD E3h FIFO Depth MACL E4h MAC Low Byte MACH E5h MAC High Byte Table 4-4. System Management SFRs Mnemonic Add Name 765432 10 PCON 87h Power Control SMOD1 SMOD0 PWDEX POF GF1 GF0 PD IDL AUXR 8Eh Auxiliary Register 0 DPU WS1WS0/M0 XRS2XRS1XRS0 EXTRAM AO AUXR1 A2h Auxiliary Register 1 – – ENBOOT XSTK GF3 0 – DPS DPCF A1h Datapointer Config Register DPU1 DPU0 DPD1 DPD0 – – – – CKRL 97h Clock Reload Register CKCKON0 8Fh Clock Control Register 0 TWIX2 WDTX2 PCAX2 SIX2 T2X2 T1X2 T0X2 X2 CKCKON1 AFh Clock Control Register 1 –––––– – SPIX2 CKSEL (1) 85h Clock Selection Register –––––– – CKS CLKREG AEh Clock Register TPS3TPS2TPS1TPS0– – – – OSCCON (1) 85h Oscillator Control Register ––––– SCLKT0 OscBEn OscAEn |
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