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P89LPC952 Datasheet(PDF) 10 Page - NXP Semiconductors |
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P89LPC952 Datasheet(HTML) 10 Page - NXP Semiconductors |
10 / 66 page 9397 750 14716 © Koninklijke Philips Electronics N.V. 2005. All rights reserved. Preliminary data sheet Rev. 01— 16 September 2005 10 of 66 Philips Semiconductors P89LPC952 8-bit microcontroller with 10-bit ADC P1.6 4 42 I/O P1.6 — Port 1 bit 6. P1.7/AD04 2 40 I/O P1.7 — Port 1 bit 7. I AD04 — ADC0 channel 4 analog input. P2.0 to P2.5 I/O Port 2: Port 2 is an 8-bit I/O port with a user-configurable output type. During reset Port 2 latches are configured in the input only mode with the internal pull-up disabled. The operation of Port 2 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 10 “Static characteristics” for details. All pins have Schmitt triggered inputs. Port 2 also provides various special functions as described below: P2.0/AD07 1 39 I/O P2.0 — Port 2 bit 0. I AD07 — ADC0 channel 7 analog input. P2.1/AD06 44 38 I/O P2.1 — Port 2 bit 1. I AD06 — ADC0 channel 6 analog input. P2.2/MOSI 34 28 I/O P2.2 — Port 2 bit 2. I/O MOSI — SPI master out slave in. When configured as master, this pin is output; when configured as slave, this pin is input. P2.3/MISO 33 27 I/O P2.3 — Port 2 bit 3. I/O MISO — When configured as master, this pin is input, when configured as slave, this pin is output. P2.4/SS 32 26 I/O P2.4 — Port 2 bit 4. I/O SS — SPI Slave select. P2.5/SPICLK 31 25 I/O P2.5 — Port 2 bit 5. I/O SPICLK — SPI clock. When configured as master, this pin is output; when configured as slave, this pin is input. P3.0 to P3.1 I/O Port 3: Port 3 is a 2-bit I/O port with a user-configurable output type. During reset Port 3 latches are configured in the input only mode with the internal pull-up disabled. The operation of Port 3 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 10 “Static characteristics” for details. All pins have Schmitt triggered inputs. Port 3 also provides various special functions as described below: P3.0/XTAL2/ CLKOUT 12 6 I/O P3.0 — Port 3 bit 0. O XTAL2 — Output from the oscillator amplifier (when a crystal oscillator option is selected via the flash configuration. O CLKOUT — CPU clock divided by 2 when enabled via SFR bit (ENCLK -TRIM.6). It can be used if the CPU clock is the internal RC oscillator, watchdog oscillator or external clock input, except when XTAL1/XTAL2 are used to generate clock source for the RTC/system timer. Table 3: Pin description …continued Symbol Pin Type Description PLCC44 LQFP44 |
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