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83C453 Datasheet(PDF) 5 Page - NXP Semiconductors |
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83C453 Datasheet(HTML) 5 Page - NXP Semiconductors |
5 / 23 page Philips Semiconductors Preliminary specification 80C453/83C453/87C453 CMOS single-chip 8-bit microcontrollers 1996 Aug 15 3-315 Table 1. 87C453 Special Function Registers SYMBOL DESCRIPTION DIRECT ADDRESS BIT NAMES AND ADDRESSES MSB LSB RESET VALUE ACC* Accumulator E0H E7 E6 E5 E4 E3 E2 E1 E0 00H B* B register F0H F7 F6 F5 F4 F3 F2 F1 F0 00H EF EE ED EC EB EA E9 E8 CSR*# Port 6 command/status E8H MB1 MB0 MA1 MA0 OBFC IDSM OBF IBF FCH DPTR Data pointer (2 bytes) DPH Data pointer high 83H 00H DPL Data pointer low 82H 00H BF BE BD BC BB BA B9 B8 IP* Interrupt priority B8H – POB PIB PS PT1 PX1 PT0 PX0 x0000000B AUXR# Auxiliary register 8EH – – – – – – AF AO x0000000B AF AE AD AC AB AA A9 A8 IE* Interrupt enable A8H EA IOB IIB ES ET1 EX1 ET0 EX0 00000000B P0* Port 0 80H 87 B6 85 84 83 82 81 80 FFH P1* Port 1 90H 97 96 95 94 93 92 91 90 FFH P2* Port 2 A0H A7 A6 A5 A4 A3 A2 A1 A0 FFH P3* Port 3 B0H B7 B6 B5 B4 B3 B2 B1 B0 FFH P4*# Port 4 C0H C7 C6 C5 C4 C3 C2 C1 C0 FFH P5*# Port 5 C8H CF CE CD CC CB CA C9 C8 FFH P6*# Port 6 D8H DF DE DD DC DB DA D9 D8 FFH PCON Power control 87H SMOD1 SMOD0 – POF1 GF1 GF0 PD IDL 00xx0000B D7 D6 D5 D4 D3 D2 D1 D0 PSW* Program status word D0H CY AC F0 RS1 RS0 OV – P 00H SADDR# Slave Address A9H 00H SADEN# Slave Address Mask B9H 00H SBUF Serial data buffer 99H xxxxxxxxB 9F 9E 9D 9C 9B 9A 99 98 SCON* Serial port control 98H SM0 SM1 SM2 REN TB8 RB8 TI RI 00H SP Stack pointer 81H 07H 8F 8E 8D 8C 8B 8A 89 88 TCON* Timer/counter control 88H TF1 TR1 TF0 TR0 IE1 IT1 IE0 IT0 00H TMOD Timer/counter mode 89H GATE C/T M1 M0 GATE C/T M1 M0 00H TH0 Timer 0 high byte 8CH 00H TH1 Timer 1 high byte 8DH 00H TL0 Timer 0 low byte 8AH 00H TL1 Timer 1 low byte 8BH 00H NOTES: * SFRs are bit addressable. # SFRs are modified from or added to the 80C51 SFRs. 1. REset value depends on reset source. |
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