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ST92F120JV1Q 데이터시트(PDF) 4 Page - STMicroelectronics |
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ST92F120JV1Q 데이터시트(HTML) 4 Page - STMicroelectronics |
4 / 320 page 4/320 Table of Contents 320 1 7 RESET AND CLOCK CONTROL UNIT (RCCU) . . . .... .... .. . . . . . . . . . . . . . ... .. . .... 99 7.1 INTRODUCTION . . . . . . . . . . . . . .... . . ... .. ... .. .. . . . . . . . ... .. .. .... . . ... .. 99 7.2 CLOCK CONTROL UNIT . . . . . . . .... . . ... .. .... ... . . . . . . . . . . . . . . . . . .. . ... .. 99 7.2.1 Clock Control Unit Overview . . . . . . . . . . . . . . . .... . . . .... .... .. . .... .. . . . 99 7.3 CLOCK MANAGEMENT . . . . . . . . . . . . . ... . . . . ... .. ... .. .. ... .. . ... .. . . ... . 101 7.3.1 PLL Clock Multiplier Programming . . . . . . . . . . . .... .... ... . . . . . . . . ... .. . . 102 7.3.2 CPU Clock Prescaling . . . . . . . . . . . . . . . . ... . . . . . . . . . .... ... . . . . . . . . . . . 102 7.3.3 Peripheral Clock . . . . . . . . . . . . . . . . . . . . . . . . . .... . . . .... .... .. . .... .. . . 103 7.3.4 Low Power Modes . . . .... . ... .. . . . . .... .... .. . .... .. . . . . . . ... .. . . . . 103 7.3.5 Interrupt Generation . . . . . . . . . . . . ... . . . . . . . . . ... .. .. ... .. .. .... . . ... . 103 7.4 CLOCK CONTROL REGISTERS . . . . . . . . . . . . . . . . . .... .... ... . . . . . . . . ... .. . . 106 7.5 OSCILLATOR CHARACTERISTICS . . . . . . . . . . . .... . . ... . . . . ... .. ... .. .. ... . 109 7.6 RESET/STOP MANAGER . . . . . . .... . . ... .. .... ... . . . . . . . . . . . . . . . . . .. . ... . 111 7.6.1 Reset Pin Timing . . . . .... . ... .. . . . . .... .... .. . .... .. . . . . . . ... .. . . . . 112 7.7 STOP MODE . . . . . . . . . . . . . . . . . . . . . . ... . . . . . . . . . ... .. .. ... .. . ... .. . . ... . 113 8 EXTERNAL MEMORY INTERFACE (EXTMI) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114 8.1 INTRODUCTION . . . . . . . . . . . . . .... . . ... .. ... .. .. . . . . . . . ... .. .. .... . . ... . 114 8.2 EXTERNAL MEMORY SIGNALS . . . . . . . . . . . . . . . . . .... . . . .... .... .. . .... .. . . 115 8.2.1 AS: Address Strobe . . .... . ... .. . . . . .... . ... .. . . ... .. . . . . . . ... .. . . .. 115 8.2.2 DS: Data Strobe .... .... .. . . . . . . . . .... . ... .. .. .. . . . . . . . ... . . . . . . . . . 115 8.2.3 DS2: Data Strobe 2 . . . . . . . . . . . . ... .. ... .. .. . . . . . . . ... .. .. .... . . ... . 115 8.2.4 RW: Read/Write . . . . . . . . . . . . . . . . . . . . . . . . . .... .... ... . ... .. . . ... .. . . 118 8.2.5 BREQ, BACK: Bus Request, Bus Acknowledge . . . . . . . . . . . . . . . . .... . . ... . 118 8.2.6 PORT 0 . . . . . . . . . . . . . . . .... . . ... .. ... .. .. . . . . . . . ... .. .. .... . . ... . 119 8.2.7 PORT 1 . . . . . . . . . . . . . . . .... . . ... .. ... .. .. . . . . . . . ... .. .. .... . . ... . 119 8.2.8 WAIT: External Memory Wait . . . . . . . . . .... .... .. . .... .. . . . . . . ... .. . . . . 119 8.3 REGISTER DESCRIPTION . .... . ... .. . . ... ... . ... .. . . ... .. . .... . ... .. . . .. 120 9 I/O PORTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ... . . . . ... .. ... .. .. ... .. . ... .. . . ... . 123 9.1 INTRODUCTION . . . . . . . . . . . . . .... . . ... .. ... .. .. . . . . . . . ... .. .. .... . . ... . 123 9.2 SPECIFIC PORT CONFIGURATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .... . . . 123 9.3 PORT CONTROL REGISTERS . . . . . . . . . . . . . . . . . . .... . . . .... .... .. . .... .. . . 123 9.4 INPUT/OUTPUT BIT CONFIGURATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124 9.5 ALTERNATE FUNCTION ARCHITECTURE . . . . . . . . . . . . . . . . . . . . . . . . .... . . ... . 128 9.5.1 Pin Declared as I/O . . .... . ... .. . . ... ... . ... .. . . ... .. . .... . ... .. .. .. 128 9.5.2 Pin Declared as an Alternate Input . . . . . .... ... . . . ... .. .. .. .. . . . . . . ... . 128 9.5.3 Pin Declared as an Alternate Function Output . . . . . . . . . . . . . . . . . . . . . .... . . . 128 9.6 I/O STATUS AFTER WFI, HALT AND RESET . . . . . . . . . . . . . . . . . . . . . . .... . . ... . 128 10 ON-CHIP PERIPHERALS . . . . . . .... . ... .. . . ... ... . ... .. . . ... .. . . ... . ... .. .. .. 129 10.1 TIMER/WATCHDOG (WDT) . . . . . . . . . . . . . .... . ... .. . . . . .... . . . ... . . . . . . . . . 129 10.1.1Introduction . . . . .... . . .. .. .. .. . . . . . . . . . . . . . ... . . . . . . . . . ... .. .. ... . 129 10.1.2Functional Description . . . . . . . . . . ... . . . . . . . . . ... .. .. ... .. . ... .. . . ... . 130 10.1.3Watchdog Timer Operation . . . . . . . . . . .... .... .. . . . . . . . . . . . . . ... .. . . . . 131 10.1.4WDT Interrupts . . . . . . . . . . . . . . . . ... . . . . . . . . . ... .. .. ... .. . ... .. . . ... . 133 10.1.5Register Description . . . . . . . . . . . . ... . . . . . . . . . ... .. .. ... .. . ... .. . . ... . 134 10.2 STANDARD TIMER (STIM) . .... . ... .. .. ... ... . . . . . . . . ... .. . . ... . . . .... . . . 136 10.2.1Introduction . . . . .... . . .. .. .. .. . . . . . . . . . . . . . ... . . . . . . . . . ... .. .. ... . 136 10.2.2Functional Description . . . . . . . . . . ... . . . . . . . . . ... .. .. ... .. . ... .. . . ... . 137 |
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