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OM5232 Datasheet(PDF) 4 Page - NXP Semiconductors |
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OM5232 Datasheet(HTML) 4 Page - NXP Semiconductors |
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4 / 11 page  Philips Semiconductors Product specification OM5232 CMOS single-chip 8-bit microcontroller December 1994 4 Table 1. OM5232 Special Function Registers SYMBOL DESCRIPTION DIRECT ADDRESS BIT ADDRESS, SYMBOL, OR ALTERNATIVE PORT FUNCTION 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 DPTR: DPH DPL Data Pointer (2 bytes) Data Pointer High Data Pointer Low 83H 82H 00H 00H AF AE AD AC AB AA A9 A8 IE*# Interrupt Enable A8H EA ES1 ES0 ET1 EX1 ET0 EX0 0x000000B BF BE BD BC BB BA B9 B8 IP*# Interrupt Priority B8H – PS1 PS0 PT1 PX1 PT0 PX0 xx000000B 87 86 85 84 83 82 81 80 P0* Port 0 80H AD7 AD6 AD5 AD4 AD3 AD2 AD1 AD0 FFH 97 96 95 94 93 92 91 90 P1*# Port 1 90H SDA SCL FFH A7 A6 A5 A4 A3 A2 A1 A0 P2* Port 2 A0H A15 A14 A13 A12 A11 A10 A9 A8 FFH B7 B6 B5 B4 B3 B2 B1 B0 P3* Port 3 B0H RD WR T1 T0 INT1 INT0 TXD RXD FFH PCON Power Control 87H SMOD – – – GF1 GF0 PD IDL 0xxx0000B 9F 9E 9D 9C 9B 9A 99 98 S0CON*# Serial 0 Port Control 98H SM0 SM1 SM2 REN TB8 RB8 TI RI 00H S0BUF# Serial 0 Data Buffer 99H xxxxxxxxB D7 D6 D5 D4 D3 D2 D1 D0 PSW* Program Status Word D0H CY AC F0 RS1 RS0 OV F1 P 00H reserved (Note 1) DAH 00H SP Stack Pointer 81H 07H reserved (Note 1) DBH 00H reserved (Note 1) D9H F8H reserved (Note 1) D8H 00000000B 8F 8E 8D 8C 8B 8A 89 88 TCON* Timer Control 88H TF1 TR1 TF0 TR0 IE1 IT1 IE0 IT0 00H TH1 Timer High 1 8DH 00H TH0 Timer High 0 8CH 00H TL1 Timer Low 1 8BH 00H TL0 Timer Low 0 8AH 00H TMOD Timer Mode 89H GATE C/T M1 M0 GATE C/T M1 M0 00H * SFRs are bit addressable. # SFRs are modified from or added to the 80C51 SFRs. NOTE 1. Reserved for I2C; not supported in OM5232 |
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