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Part: ST7FLCD1G9M1
Category:
Description: 60 Kbyte Flash 8-BIT MCU For LCD Monitors With 2K RAM, 8-BIT ADC, Timer, Pwms, 2 Ddc, I2C, Ifr
Company: ST Microelectronics, Inc.
Datasheet: Download ST7FLCD1G9M1 datasheet File size : 736 kB
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®
ST 7FLCD1
8-bit MCU for LCD Monitors with 60 KBytes Flash, 2 KBytes RAM, 2 DDC Ports and Infrared Controller
PRODUCT PREVIEW
Key Features
60 KBytes Flash Program Memory In-Circuit Debugging and Programming In-Application Programming Data RAM: up to 2 KBytes (256 bytes stack, 2 x 256 bytes for DDCs) 8 MHz, up to 9 MHz Internal Clock Frequency True Bit Manipulation Run and Wait CPU Modes Programmable Watchdog for System Reliability Protection against Illegal Opcode Execution 2 DDC Bus Interfaces with:
SO28 ORDER CODE: ST7FLCD1
General Description
The ST7FLCD1 is a microcontroller (MCU) from the ST7 family with dedicated peripherals for LCD monitor applications. The ST7FLCD1 is an industry standard 8-bit core that offers an enhanced instruction set. The 5V supplied processor runs with an external clock at 24 MHz (27 MHz maximum). Under software control, the MCU mode changes to Wait mode thus reducing power consumption. The enhanced instruction set and addressing modes offer real programming potential. In addition to standard 8-bit data management, the MCU features also include true bit manipulation, 8x8 unsigned multiplication and indirect addressing modes. The device gathers the on-chip oscillator, CPU, 60-Kbyte Flash, 2-KByte RAM, I/Os, two 8-bit timers, infrared preprocessor, 4-channel Analog-toDigital Converter, 2 DDCs, I²C single master, watchdog, reset and six 8-bit PWM outputs for analog DC control of external functions.
DDC 2B protocol implemented in hardware Programmable DDC CI modes Enhanced DDC (EDDC) address decoding HDCP Encryption keys
Fast I²C Single Master Interface 8-bit Timer with Programmable Pre-scaler, Auto-reload and independent Buzzer Output 8-bit Timer with External Trigger 4-channel, 8-bit Analog to Digital Converter 4 + 2 8-bit PWM Digital to Analog Outputs with Frequency Adjustment Infrared Controller (IFR) Up to 22 I/O Lines in 28-pin Package 2 Lines Programmable as Interrupt Inputs Master Reset and Low Voltage Detector (LVD) Reset Complete Development Support on PCWindows Full Software Package (Assembler, Linker, C-compiler and Source Level Debugger)
April 2004
1/95
ST7FLCD1
Table of Contents
Chapter 1
1.1 1.2 1.3 1.4 1.5 1.6
General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Block Diagram ............ 6 Abbreviations ..... 6 Reference Documents ......... 7 Pin Description ........... 8 External Connections ......... 10 Memory Map ............ 11
Chapter 2
2.1
Central Processing Unit (CPU) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Main Features ........... 15
2.1.1 CPU Registers ..15
Chapter 3
3.1 3.2 3.3 3.4
Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Low Voltage Detector and Watchdog Reset .... 22 Watchdog or Illegal Opcode Access Reset ...... 23 External Reset ........... 23 Reset Procedure ....... 23
Chapter 4
4.1 4.2 4.3 4.4 4.5
Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
Software ........... 24 External Interrupts (ITA, ITB) ............ 24 Peripheral Interrupts .. 24 Processing ....... 24 Register Description .......... 26
Chapter 5
5.1 5.2 5.3 5.4 5.5 5.6 5.7 5.8
Flash Program Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
Introduction ...... 28 Main Features ........... 28 Structure ........... 28 Program Memory Read-out Protection ...... 28 In-Circuit Programming (ICP) ............ 29 In-Application Programming (IAP) ..... 30 Register Description .. 30 Flash Option Bytes .... 31
2/95
ST7FLCD1 Chapter 6
6.1
Clocks & Low Power Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
Clock System ............ 32
6.1.1 6.1.2 6.1.3 6.1.4 General Description .........32 Crystal Oscillator Mode ....32 External Clock Mode ........32 Clock Signals ....32
6.2
Power Saving Modes ......... 33
6.2.1 6.2.2 6.2.3 6.2.4 HALT Mode .......33 WAIT Mode .......33 Exit from HALT and WAIT Modes ............33 Selected Peripherals Mode .......34
Chapter 7
7.1 7.2 7.3 7.4 7.5 7.6 7.7
I/O Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
Introduction ...... 35 Common Functional Description ....... 36 Port A ...... 37 Port B ...... 39 Port C ...... 40 Port D ...... 41 Register Description .. 42
Chapter 8
8.1 8.2 8.3 8.4
PWM Generator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
Introduction ...... 43 Main Features ........... 43 Functional Description ........ 43 Register Description .. 46
Chapter 9
9.1 9.2 9.3 9.4
8-bit Analog-to-Digital Converter (ADC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49
Introduction ...... 49 Main Features ........... 49 Functional Description ........ 49 Register Description .. 50
Chapter 10
10.1 10.2 10.3 10.4 10.5
I²C Single-Master Bus Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52
Introduction ...... 52 Main Features ........... 52 General Description .. 52 Functional Description (Master Mode) ....... 54 Transfer Sequencing .......... 54
3/95
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