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2 / 190 page 2/190 Table of Contents 190 9 1 GENERAL DESCRIPTION . . . . . . .... . ... .. . . . . .... .... .. . .... .. . . . . . . ... .. . . . . . . 6 1.1 INTRODUCTION . . . . . . . . . . . . . .... . . ... .. ... .. .. . . . . . . . ... .. .. .... . . ... .. . 6 1.1.1 ST9+ Core . . . .... .... .. . .... .. . .... . ... .. .. .. .... . . . ... . . . . . . . . . . . 6 1.1.2 Power Saving Modes . . . . . . . . . . . . . .... . ... .. .. .. .... . . . ... . . . . . . . . ... 6 1.1.3 system Clock . . . . . . . . . . . . . . . . ... . . . . ... .. ... .. .. ... .. . ... .. . . ... . . . 6 1.1.4 I/O Ports . . . . . . . . . . . . . . .... . . ... .. ... .. .. . . . . . . . ... .. .. .... . . ... .. . 6 1.1.5 Multifunction Timers (MFT) . . . . . . ... . . . . . . . . . ... .. .. ... .. . ... .. . . ... .. . 7 1.1.6 Standard Timer (STIM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 1.1.7 Watchdog Timer (WDT) . . . . . . . . . . . . .... .... .. . . . . . . . . . . . . . ... .. . .... . 7 1.1.8 Serial Peripheral Interface (SPI) . . . . . . . . ... . . . . . . . . . .... ... . . . . . . . . . . . . . 7 1.1.9 Serial Communications Controllers (SCI) . . . . . . . . . . . . .... . . . . .. . . . . . . . . ... 7 1.1.10 Analog/Digital Converter (ADC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .... . . ... .. . 7 1.2 PIN DESCRIPTION . . .... . ... .. . . ... .. . .... . ... .. .. .. .... . . . ... . . . . . . . . . . 10 1.3 I/O PORT PINS . . . . . . . . . . . . . . . . . . . . ... . . . . . . . . . ... .. .. ... .. .. . . .. . . ... .. 13 2 DEVICE ARCHITECTURE . . . . . . . . . . .... . . ... .. ... .. .. . . . . . . . ... .. .. .... . . ... .. 18 2.1 CORE ARCHITECTURE . . . . . . . . . . . . . . . . . . .... ... . . . . . . . . . . . . . . . . . . . . ... .. 18 2.2 MEMORY SPACES . . . . . . . . . . . . . . .... . ... .. .. .. . . . . . . . . . . . . ... . . . .... . ... 18 2.2.1 Register File . . . . . . . . . . . . . . . . . . . . . . . . . . . .... .... ... . . . . . . . . ... .. . . . 18 2.2.2 Register Addressing . . . . . .... . . ... .. .... ... . . . . . . . . . . . . . . . . . .. . ... .. 20 2.3 SYSTEM REGISTERS . . . . . . . . . . . . . . . . . . . . . . . . . .... .... ... . . . . . . . . ... .. . . . 21 2.3.1 Central Interrupt Control Register . . . . . . . . . . . .... . . . . ... . ... .. . . ... .. . . . 21 2.3.2 Flag Register . . . . . . .... . ... .. . . ... ... . ... .. . . ... .. . . ... . ... .. .. ... 22 2.3.3 Register Pointing Techniques . . . . ... .. ... .. .. ... .. .. ... .. .. .... . . ... .. 23 2.3.4 Paged Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 2.3.5 Mode Register . . . . . .... . ... .. . . . . .... .... .. . .... .. . . . . . . ... .. . . . . . 26 2.3.6 Stack Pointers . . . . . . . . . . . . . . . . . . . . . .... ... . . . . . . . . . . . . . . . . . . . . ... .. 27 2.4 MEMORY ORGANIZATION . . . . . . . . . . . . . . . .... . . . ... . . . . . . . . . . . . . ... ... . . . . 29 2.5 MEMORY MANAGEMENT UNIT . . . . . . . . . . .... . ... .. . . . . .... . . . . .. . . . . . . . . . . 30 2.6 ADDRESS SPACE EXTENSION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 2.6.1 Addressing 16-Kbyte Pages . . . . . . . . . .... . . . . .. . . . . . . . . . . . . . ... .. . .... 31 2.6.2 Addressing 64-Kbyte Segments . . . . . .... . ... .. .. .. .... . . . ... . . . . . . . . . . 32 2.7 MMU REGISTERS . .... .. . .... . ... .. . . ... ... . ... .. . . ... .. . .... . ... .. . . ... 32 2.7.1 DPR[3:0]: Data Page Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . .... . . ... .. 32 2.7.2 CSR: Code Segment Register . . . ... . . . . . . . . . ... .. .. ... .. . ... .. . . ... .. 34 2.7.3 ISR: Interrupt Segment Register . . . . . . . . . . . . .... .... ... . ... .. . . ... .. . . . 34 2.7.4 DMASR: DMA Segment Register . . . . . . . . . . . .... .... ... . ... .. . . ... .. . . . 34 2.8 MMU USAGE . . . . . . . . . . . . . . . . . . . . . . . . . . .... . . . ... . . . . . . . . . . . . . ... ... . . . . 36 2.8.1 Normal Program Execution . . . . . . . . . . . . . . . . . . . . . . . . . . . . .... . ... .. . . ... 36 2.8.2 Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .... .... ... . ... .. . . ... .. . . . 36 2.8.3 DMA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .... . . . . ... . ... .. . . ... .. . . . 36 3 REGISTER AND MEMORY MAP .... .. . . . . . . . . .... . ... .. .. .. . .... ... . . . . . . . . . . . . 37 3.1 MEMORY CONFIGURATION . . . . . . . . . . . . . .... . . . . .. . . . . . . . . . . . . . ... .. . .... 37 3.2 EPROM PROGRAMMING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 3.3 MEMORY MAP . . . . . . . . . . .... . ... ... . . . .... .... .. . . . . . . . . . . . . . ... .. . .... 39 3.4 ST90158/135 REGISTER MAP . . . . . . . . . . . . . . ... . . . . ... .. ... .. .. . . . . . . . ... .. 40 4 INTERRUPTS . . .... .. . . . . . . . . .... . ... .. . . . . .... .... .. . .... .. . . . . . . ... .. . . . . . 48 4.1 INTRODUCTION . . . . . . . . . . . . . .... . . ... .. ... .. .. . . . . . . . ... .. .. .... . . ... .. 48 4.2 INTERRUPT VECTORING .... .. . .... .. . .... . ... .. .. .. .... . . . ... . . . . . . . . . . 48 |
Số phần tương tự - ST90158-ST90135 |
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Mô tả tương tự - ST90158-ST90135 |
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