P89LPC920_921_922_9221 NXP Semiconductors, P89LPC920_921_922_9221 Datasheet
P89LPC920_921_922_9221
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P89LPC920_921_922_9221 Summary of contents
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P89LPC920/921/922/9221 8-bit microcontrollers with two-clock 80C51 core 2 kB/4 kB low-power Flash with 256-byte data RAM Rev. 08 — 15 December 2004 1. General description The P89LPC920/921/922/9221 are single-chip microcontrollers designed for applications demanding high-integration, low cost ...
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Philips Semiconductors 2.2 Additional features 15 I/O pins minimum I/O pins while using on-chip oscillator and reset options. 20-pin TSSOP and DIP packages. A high performance 80C51 CPU provides instruction cycle times of 111 ns to 222 ...
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Philips Semiconductors 3. Ordering information Table 1: Type number P89LPC920FDH P89LPC921FDH P89LPC922FDH P89LPC922FN P89LPC9221FN P89LPC9221FDH TSSOP20 3.1 Ordering options Table 2: Type number P89LPC920FDH P89LPC921FDH P89LPC922FDH P89LPC922FN P89LPC9221FN P89LPC9221FDH 9397 750 14469 Product data P89LPC920/921/922/9221 8-bit microcontrollers with two-clock 80C51 ...
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Philips Semiconductors 4. Block diagram P89LPC920/921/922/9221 CONFIGURABLE I/Os CONFIGURABLE I/Os CONFIGURABLE I/Os PROGRAMMABLE OSCILLATOR DIVIDER CRYSTAL OR RESONATOR Fig 1. Block diagram. 9397 750 14469 Product data P89LPC920/921/922/9221 8-bit microcontrollers with two-clock 80C51 core HIGH PERFORMANCE ACCELERATED 2-CLOCK 80C51 CPU ...
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Philips Semiconductors 5. Pinning information 5.1 Pinning Fig 2. TSSOP20 pin configuration. Fig 3. DIP20 pin configuration. 9397 750 14469 Product data P89LPC920/921/922/9221 8-bit microcontrollers with two-clock 80C51 core handbook, halfpage KBI0/CMP2/ ...
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Philips Semiconductors 5.2 Pin description Table 3: Pin description Symbol Pin Type Description P0.0 to P0.7 I/O Port 0: Port 8-bit I/O port with a user-configurable output type. During reset Port 0 latches are configured in the ...
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Philips Semiconductors Table 3: Pin description …continued Symbol Pin Type Description [1] P1.0 to P1.7 I/O, I Port 1: Port 8-bit I/O port with a user-configurable output type, except for three pins as noted below. During reset ...
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Philips Semiconductors Table 3: Pin description …continued Symbol Pin Type Description P3.0 to P3.1 I/O Port 3: Port 2-bit I/O port with a user-configurable output type. During reset Port 3 latches are configured in the input only ...
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Philips Semiconductors 7. Special function registers Remark: Special Function Registers (SFRs) accesses are restricted in the following ways: • User must not attempt to access any SFR locations not defined. • Accesses to any defined SFR locations must be strictly ...
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Table 4: Special function registers * indicates SFRs that are bit addressable. Name Description SFR addr. Bit address ACC* Accumulator E0H AUXR1 Auxiliary function register A2H Bit address B* B register F0H ...
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Table 4: Special function registers …continued * indicates SFRs that are bit addressable. Name Description SFR addr. I2SCLL Serial clock generator/SCL DCH duty cycle register LOW 2 I2STAT I C status register ...
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Table 4: Special function registers …continued * indicates SFRs that are bit addressable. Name Description SFR addr. P1M2 Port 1 output mode 2 92H P3M1 Port 3 output mode 1 B1H P3M2 ...
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Table 4: Special function registers …continued * indicates SFRs that are bit addressable. Name Description SFR addr. TRIM Internal oscillator trim register 96H WDCON Watchdog control register A7H WDL Watchdog load C1H ...
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Philips Semiconductors 8. Functional description Remark: Please refer to the P89LPC920/921/922/9221 User’s Manual for a more detailed functional description. 8.1 Enhanced CPU The P89LPC920/921/922/9221 uses an enhanced 80C51 CPU which runs at 6 times the speed of standard 80C51 devices. ...
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Philips Semiconductors the minimum specified operating voltage. When using an oscillator frequency above 12 MHz, in some applications, an external brownout detect circuit may be required to hold the device in reset when V specified operating voltage. 8.2.6 Clock output ...
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Philips Semiconductors Fig 5. Block diagram of oscillator control. 9397 750 14469 Product data P89LPC920/921/922/9221 8-bit microcontrollers with two-clock 80C51 core XTAL1 High freq. Med. freq. XTAL2 Low freq. OSCCLK RC OSCILLATOR (7.3728 MHz) WATCHDOG OSCILLATOR (400 kHz) PCLK TIMER ...
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Philips Semiconductors 8.6 CPU Clock (CCLK) wake-up delay The P89LPC920/921/922/9221 has an internal wake-up timer that delays the clock until it stabilizes depending to the clock source used. If the clock source is any of the three crystal selections (low, ...
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Philips Semiconductors 8.10 Data RAM arrangement The 256 bytes of on-chip RAM are organized as shown in Table 5: Type DATA IDATA 8.11 Interrupts The P89LPC920/921/922/9221 uses a four priority level interrupt structure. This allows great flexibility in controlling the ...
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Philips Semiconductors RTCF ERTC (RTCCON.1) WDOVF EA (IE0.7) TI & RI/RI Fig 6. Interrupt sources, interrupt enables, and power-down wake-up sources. 8.12 I/O ports The P89LPC920/921/922/9221 has three I/O ports: Port 0, Port 1, and Port 3. Ports 0 and ...
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Philips Semiconductors P1.2 (SCL/T0) and P1.3 (SDA/INT0) may only be configured to be either input-only or open-drain. 8.12.2 Quasi-bidirectional output configuration Quasi-bidirectional output type can be used as both an input and output without the need to reconfigure the port. ...
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Philips Semiconductors 8.12.7 Additional port features After power-up, all pins are in Input-Only mode. Please note that this is different from the LPC76x series of devices. • After power-up, all I/O pins except P1.5, may be configured by software. • ...
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Philips Semiconductors 8.14.1 Idle mode Idle mode leaves peripherals running in order to allow them to activate the processor when an interrupt is generated. Any enabled interrupt source or reset may terminate Idle mode. 8.14.2 Power-down mode The Power-down mode ...
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Philips Semiconductors • External reset pin (during power- user configured via UCFG1). This option must be used for an oscillator frequency above 12 MHz); • Power-on detect; • Brownout detect; • Watchdog Timer; • Software reset; • UART ...
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Philips Semiconductors 8.16.3 Mode 2 Mode 2 configures the Timer register as an 8-bit Counter with automatic reload. Mode 2 operation is the same for Timer 0 and Timer 1. 8.16.4 Mode 3 When Timer Mode 3 ...
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Philips Semiconductors 8.18.2 Mode 1 10 bits are transmitted (through TxD) or received (through RxD): a start bit (logical ‘0’), 8 data bits (LSB first), and a stop bit (logical ‘1’). When data is received, the stop bit is stored ...
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Philips Semiconductors 8.18.7 Break detect Break detect is reported in the status register (SSTAT). A break is detected when 11 consecutive bits are sensed LOW. The break detect can be used to reset the device and force the device into ...
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Philips Semiconductors 2 8.19 I C-bus serial interface 2 I C-bus uses two wires (SDA and SCL) to transfer information between devices connected to the bus, and it has the following features: • Bidirectional data transfer between masters and slaves ...
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Philips Semiconductors P1.3/SDA P1.2/SCL Fig 9. I 9397 750 14469 Product data P89LPC920/921/922/9221 8-bit microcontrollers with two-clock 80C51 core ADDRESS REGISTER P1.3 INPUT FILTER OUTPUT STAGE BIT COUNTER / ARBITRATION & INPUT SYNC LOGIC FILTER SERIAL CLOCK OUTPUT GENERATOR STAGE ...
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Philips Semiconductors 8.20 Analog comparators Two analog comparators are provided on the P89LPC920/921/922/9221. Input and output options allow use of the comparators in a number of different configurations. Comparator operation is such that the output is a logical one (which ...
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Philips Semiconductors 8.20.2 Comparator interrupt Each comparator has an interrupt flag contained in its configuration register. This flag is set whenever the comparator output changes state. The flag may be polled by software or may be used to generate an ...
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Philips Semiconductors 8.22 Watchdog timer The Watchdog timer causes a system reset when it underflows as a result of a failure to feed the timer prior to the timer reaching its terminal count. It consists of a programmable 12-bit prescaler, ...
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Philips Semiconductors 8.24 Flash program memory 8.24.1 General description The P89LPC920/921/922/9221 Flash memory provides in-circuit electrical erasure and programming. The Flash can be read, erased, or written as bytes. The Sector and Page Erase functions can erase any Flash sector ...
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Philips Semiconductors Flash programming and erasing: programming of the Flash memory that may be used. First, the Flash may be programmed or erased in the end-user application by calling low-level routines through a common entry point. Second, the on-chip ISP ...
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Philips Semiconductors and Boot Status Bit. After programming the Flash, the Boot Status Bit should be programmed to zero in order to allow execution of the user’s application code beginning at address 0000H. In-System Programming (ISP): removing the microcontroller from ...
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Philips Semiconductors 9. Limiting values [1] Table 7: Limiting values In accordance with the Absolute Maximum Rating System (IEC 60134). Symbol Parameter T operating bias ambient temperature amb(bias) T storage temperature range stg V voltage on XTAL1, XTAL2 pin to ...
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Philips Semiconductors 10. Static characteristics Table 8: DC electrical characteristics 3.6 V unless otherwise specified +85 C for industrial, unless otherwise specified. amb Symbol Parameter I power supply current, ...
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Philips Semiconductors Table 8: DC electrical characteristics 3.6 V unless otherwise specified +85 C for industrial, unless otherwise specified. amb Symbol Parameter V brownout trip voltage with BO BOV ...
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Philips Semiconductors 11. Dynamic characteristics Table 9: AC characteristics 3.6 V unless otherwise specified +85 C for industrial, unless otherwise specified. amb Symbol Parameter f internal RC oscillator frequency ...
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Philips Semiconductors Table 10: AC characteristics 3.6 V unless otherwise specified +85 C for industrial, unless otherwise specified. amb Symbol Parameter f internal RC oscillator frequency RCOSC (nominal f ...
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Philips Semiconductors t XLXL Clock t QVXH Output Data 0 Write to SBUF t XHDV Input Data Valid Clear RI Fig 12. Shift register mode timing 0.5 V 0.45 V Fig 13. External clock timing. Table 11: ...
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Philips Semiconductors 12. Comparator electrical characteristics Table 12: Comparator electrical characteristics 3.6 V, unless otherwise specified +85 C for industrial, unless otherwise specified. amb Symbol Parameter V offset voltage ...
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Philips Semiconductors 13. Package outline TSSOP20: plastic thin shrink small outline package; 20 leads; body width 4 pin 1 index 1 e DIMENSIONS (mm are the original dimensions) A UNIT ...
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Philips Semiconductors DIP20: plastic dual in-line package; 20 leads (300 mil pin 1 index 1 DIMENSIONS (inch dimensions are derived from the original mm dimensions UNIT b max. min. max. 1.73 mm ...
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Philips Semiconductors 14. Revision history Table 13: Revision history Rev Date CPCN Description 08 20041215 - Product data (9397 750 14469) Modification: • Added 18 MHz information. 07 20041203 - Product data (9397 750 14251) 06 20031121 - Product data ...
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Philips Semiconductors 15. Data sheet status [1] Level Data sheet status Product status I Objective data Development II Preliminary data Qualification III Product data Production [1] Please consult the most recently issued data sheet before initiating or completing a design. ...
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Philips Semiconductors Contents 1 General description . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 2 Features . . . . ...