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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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P89LPC9321 датащи(PDF) 8 Page - NXP Semiconductors |
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P89LPC9321 датащи(HTML) 8 Page - NXP Semiconductors |
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8 / 70 page  P89LPC9321_1 © NXP B.V. 2008. All rights reserved. Product data sheet Rev. 01 — 9 December 2008 8 of 70 NXP Semiconductors P89LPC9321 8-bit microcontroller with accelerated two-clock 80C51 core 6.2 Pin description Table 3. Pin description Symbol Pin Type Description P0.0 to P0.7 I/O Port 0: Port 0 is an 8-bit I/O port with a user-configurable output type. During reset Port 0 latches are configured in the input only mode with the internal pull-up disabled. The operation of Port 0 pins as inputs and outputs depends upon the port configuration selected. Each port pin is configured independently. Refer to Section 7.16.1 “Port configurations” and Table 10 “Static characteristics” for details. The Keypad Interrupt feature operates with Port 0 pins. All pins have Schmitt trigger inputs. Port 0 also provides various special functions as described below: P0.0/CMP2/ KBI0 3 I/O P0.0 — Port 0 bit 0. O CMP2 — Comparator 2 output I KBI0 — Keyboard input 0. P0.1/CIN2B/ KBI1 26 I/O P0.1 — Port 0 bit 1. I CIN2B — Comparator 2 positive input B. I KBI1 — Keyboard input 1. P0.2/CIN2A/ KBI2 25 I/O P0.2 — Port 0 bit 2. I CIN2A — Comparator 2 positive input A. I KBI2 — Keyboard input 2. P0.3/CIN1B/ KBI3 24 I/O P0.3 — Port 0 bit 3. High current source. I CIN1B — Comparator 1 positive input B. I KBI3 — Keyboard input 3. P0.4/CIN1A/ KBI4 23 I/O P0.4 — Port 0 bit 4. High current source. I CIN1A — Comparator 1 positive input A. I KBI4 — Keyboard input 4. P0.5/CMPREF/ KBI5 22 I/O P0.5 — Port 0 bit 5. High current source. I CMPREF — Comparator reference (negative) input. I KBI5 — Keyboard input 5. |
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