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P89LPC952 Datasheet(PDF) 9 Page - NXP Semiconductors |
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P89LPC952 Datasheet(HTML) 9 Page - NXP Semiconductors |
9 / 69 page P89LPC952_954_4 © NXP B.V. 2008. All rights reserved. Product data sheet Rev. 04 — 24 July 2008 9 of 69 NXP Semiconductors P89LPC952/954 8-bit microcontroller with 10-bit ADC 6.2 Pin description Table 3. Pin description Symbol Pin Type Description LQFP48 PLCC44 LQFP44 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 7.13.1 “Port configurations” and Table 11 “Static characteristics” for details. The Keypad Interrupt feature operates with Port 0 pins. All pins have Schmitt triggered inputs. Port 0 also provides various special functions as described below: P0.0/CMP2/ KBI0/AD05 40 43 37 I/O P0.0 — Port 0 bit 0. O CMP2 — Comparator 2 output. I KBI0 — Keyboard input 0. I AD05 — ADC0 channel 5 analog input. P0.1/CIN2B/ KBI1/AD00 39 42 36 I/O P0.1 — Port 0 bit 1. I CIN2B — Comparator 2 positive input B. I KBI1 — Keyboard input 1. I AD00 — ADC0 channel 0 analog input. P0.2/CIN2A/ KBI2/AD01 38 41 35 I/O P0.2 — Port 0 bit 2. I CIN2A — Comparator 2 positive input A. I KBI2 — Keyboard input 2. I AD01 — ADC0 channel 1 analog input. P0.3/CIN1B/ KBI3/AD02 37 40 34 I/O P0.3 — Port 0 bit 3. I CIN1B — Comparator 1 positive input B. I KBI3 — Keyboard input 3. I AD02 — ADC0 channel 2 analog input. P0.4/CIN1A/ KBI4/AD03 36 39 33 I/O P0.4 — Port 0 bit 4. I CIN1A — Comparator 1 positive input A. I KBI4 — Keyboard input 4. I AD03 — ADC0 channel 3 analog input. P0.5/CMPREF/ KBI5 35 38 32 I/O P0.5 — Port 0 bit 5. I CMPREF — Comparator reference (negative) input. I KBI5 — Keyboard input 5. |
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