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P87C58EBLKA Datasheet(PDF) 10 Page - NXP Semiconductors |
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P87C58EBLKA Datasheet(HTML) 10 Page - NXP Semiconductors |
10 / 21 page Philips Semiconductors Preliminary specification 87C54/87C58 CMOS single-chip 8-bit microcontrollers 1996 Aug 16 3-224 SMOD1 SMOD0 OSF POF LVF GF0 GF1 IDL PCON (87H) SM0 / FE SM1 SM2 REN TB8 RB8 TI RI SCON (98H) D0 D1 D2 D3 D4 D5 D6 D7 D8 STOP BIT DATA BYTE ONLY IN MODE 2, 3 START BIT SET FE BIT IF STOP BIT IS 0 (FRAMING ERROR) SM0 TO UART MODE CONTROL 0 : SCON.7 = SM0 1 : SCON.7 = FE SU00044 Figure 2. UART Framing Error Detection SM0 SM1 SM2 REN TB8 RB8 TI RI SCON (98H) D0 D1 D2 D3 D4 D5 D6 D7 D8 1 1 1 0 COMPARATOR 11 X RECEIVED ADDRESS D0 TO D7 PROGRAMMED ADDRESS IN UART MODE 2 OR MODE 3 AND SM2 = 1: INTERRUPT IF REN=1, RB8=1 AND “RECEIVED ADDRESS” = “PROGRAMMED ADDRESS” – WHEN OWN ADDRESS RECEIVED, CLEAR SM2 TO RECEIVE DATA BYTES – WHEN ALL DATA BYTES HAVE BEEN RECEIVED: SET SM2 TO WAIT FOR NEXT ADDRESS. SU00045 Figure 3. UART Multiprocessor Communication, Automatic Address Recognition ABSOLUTE MAXIMUM RATINGS1, 2, 3 PARAMETER RATING UNIT Operating temperature under bias 0 to +70 or –40 to +85 °C Storage temperature range –65 to +150 °C Voltage on EA/VPP pin to VSS 0 to +13.0 V Voltage on any other pin to VSS –0.5 to +6.5 V Maximum IOL per I/O pin 15 mA Power dissipation (based on package heat transfer limitations, not device power consumption) 1.5 W NOTES: 1. Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any conditions other than those described in the AC and DC Electrical Characteristics section of this specification is not implied. 2. This product includes circuitry specifically designed for the protection of its internal devices from the damaging effects of excessive static charge. Nonetheless, it is suggested that conventional precautions be taken to avoid applying greater than the rated maxima. 3. Parameters are valid over operating temperature range unless otherwise specified. All voltages are with respect to VSS unless otherwise noted. |
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