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SST89E52RD2-40-I-QJ Datasheet(PDF) 17 Page - Silicon Storage Technology, Inc |
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SST89E52RD2-40-I-QJ Datasheet(HTML) 17 Page - Silicon Storage Technology, Inc |
17 / 81 page Data Sheet FlashFlex51 MCU SST89E52RD2/RD / SST89E54RD2/RD / SST89E58RD2/RD SST89V52RD2/RD / SST89V54RD2/RD / SST89V58RD2/RD 17 ©2006 Silicon Storage Technology, Inc. S71255-05-000 5/06 TABLE 3-5: CPU related SFRs Symbol Description Direct Address Bit Address, Symbol, or Alternative Port Function Reset Value MSB LSB ACC1 Accumulator E0H ACC[7:0] 00H B1 B Register F0H B[7:0] 00H PSW1 Program Status Word D0H CY AC F0 RS1 RS0 OV F1 P 00H SP Stack Pointer 81H SP[7:0] 07H DPL Data Pointer Low 82H DPL[7:0] 00H DPH Data Pointer High 83H DPH[7:0] 00H IE1 Interrupt Enable A8H EA EC ET2 ES ET1 EX1 ET0 EX0 00H IEA1 Interrupt Enable A E8H - - - - EBO - - - xxxx0xxxb IP1 Interrupt Priority Reg B8H - PPC PT2 PS PT1 PX1 PT0 PX0 x0000000b IPH Interrupt Priority Reg High B7H - PPCH PT2H PSH PT1H PX1H PT0H PX0H x0000000b IP11 Interrupt Priority Reg A F8H - - - - PBO PX3 PX2 - xxxx0xxxb IP1H Interrupt Priority Reg A High F7H - - - - PBOH PX3H PX3 - xxxx0xxxb PCON Power Control 87H SMOD1 SMOD0 BOF POF GF1 GF0 PD IDL 00010000b AUXR Auxiliary Reg 8EH - - - - - - EXTRAM AO xxxxxxx00b AUXR1 Auxiliary Reg 1 A2H - - - - GF2 0 - DPS xxxx00x0b XICON2 External Interrupt Control AEH X EX3 IE3 IT3 0 EX2 IE2 IT2 00H T3-5.0 1255 1. Bit Addressable SFRs 2. X = Don’t care TABLE 3-6: Flash Memory Programming SFRs Symbol Description Direct Address Bit Address, Symbol, or Alternative Port Function Reset Value MSB LSB SFCF SuperFlash Configuration B1H - IAPEN - - - - SWR BSEL x0xxxx00b SFCM SuperFlash Command B2H FIE FCM[6:0] 00H SFAL SuperFlash Address Low B3H SuperFlash Low Order Byte Address Register - A7 to A0 (SFAL) 00H SFAH SuperFlash Address High B4H SuperFlash High Order Byte Address Register - A15 to A8 (SFAH) 00H SFDT SuperFlash Data B5H SuperFlash Data Register 00H SFST SuperFlash Status B6H SB1_i SB2_i SB3_i - EDC_i FLASH_BUSY - - 000x00xxb T3-6.0 1255 |
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