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P83C370AAR Datasheet(PDF) 8 Page - NXP Semiconductors |
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P83C370AAR Datasheet(HTML) 8 Page - NXP Semiconductors |
8 / 80 page 6 MEMORY ORGANIZATION The P8xCx70 family offers a choice of different RAM and ROM configurations; see “Ordering information”. The device has no external memory capability, consequently the RD (read) and WR (write) signals are not bonded out. EA (External Access), PSEN (Program Store Enable) and ALE (Address Latch Enable) are bonded out for testing purposes only. For the complete memory map of the P8xC770 family refer to the 80C51 architecture in “Data Handbook IC20”. 6.1 SFR address map summary The SFRs are presented in ascending address order. Table 2 SFR address map summary ADDRESS REGISTER NAME 76543210 80H(1) P0 (latch) P07 P06 P05 P04 P03 P02 P01 P00 81H(1) Stack Pointer (SP) SP7 SP6 SP5 SP4 SP3 SP2 SP1 SP0 86H PWM0 (7-bit PWM) PWM0E data6 data5 data4 data3 data2 data1 data0 87H(1) Power Control Register (PCON) −−− WLE GF1 GF0 PD IDL 88H(1) Timer/Counter Control Register (TCON) TF1 TR1 TF0 TR0 IE1 IT1 IE0 IT0 89H(1) Timer/Counter Mode Control Register (TMOD) Gate C/T M1 M0 Gate C/T M1 M0 8AH(1) Timer 0 Low byte (TL0) TL07 TL06 TL05 TL04 TL03 TL02 TL01 TL00 8BH(1) Timer 1 Low byte (TL1) TL17 TL16 TL15 TL14 TL13 TL12 TL11 TL10 8CH(1) Timer 0 High byte (TH0) TH07 TH06 TH05 TH04 TH03 TH02 TH01 TH00 8DH(1) Timer 1 High byte (TH1) TH17 TH16 TH15 TH14 TH13 TH12 TH11 TH10 90H(1) P1 (latch) P17 P16 P15 P14 P13 P12 P11 P10 92H Standby Control Register (STBCON) −−−−−−− STBY 96H PWM1 (7-bit PWM) PWM1E data6 data5 data4 data3 data2 data1 data0 98H Interrupt Request Register 1 (IRQ1) − RCC RBUSY −−−−− A0H(1) P2 (latch) P27 P26 P25 P24 P23 P22 P21 P20 A6H PWM2 (7-bit PWM) PWM2E data6 data5 data4 data3 data2 data1 data0 A8H(1) Interrupt Enable Register 0 (IEN0) EA − ES1 − ET1 EX1 ET0 EX0 B0H(1) P3 (latch) P37 P36 P35 P34 P33 P32 P31 P30 B6H PWM3 (7-bit PWM) PWM3E data6 data5 data4 data3 data2 data1 data0 B7H Slice Line Register (SL) −−− CS4 CS3 CS2 CS1 CS0 B8H(1) Interrupt Priority Register 0 (IP0) −− PS1 − PT1 PX1 PT0 PX0 C6H PWM4 (7-bit PWM) PWM4E data6 data5 data4 data3 data2 data1 data0 |
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