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STR720RXH6 Datasheet(PDF) 3 Page - STMicroelectronics

Part # STR720RXH6
Description  ARM720T 16/32-BIT MCU WITH 16K RAM, USB, CAN, 3 TIMERS, ADC, 6 COMMUNICATIONS INTERFACES
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STR720RXH6 Datasheet(HTML) 3 Page - STMicroelectronics

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Table of Contents
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5.20 Miscellanea Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
6 MEMORY ORGANIZATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
6.1
Program memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
6.2
Memory map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
6.3
APB Bridges Mapping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
6.3.1
Asynchronous APB sub-system (A-APB) . . . . . . . . . . . . . . . . . . . . . . . . 48
6.3.2
Synchronous APB sub-system (S-APB) . . . . . . . . . . . . . . . . . . . . . . . . . 50
7 ENHANCED INTERRUPT CONTROLLER (EIC) . . . . . . . . . . . . . . . . . . . . 51
7.1
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
7.2
Main Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
7.3
Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
7.3.1
Priority Level Arbitration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
7.4
Register Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
7.4.1
Register map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
7.5
Programming considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
7.6
Application note . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
7.6.1
Avoiding LR_sys and r5 registers content loss . . . . . . . . . . . . . . . . . . . . 68
7.6.2
Hints about subroutines used inside ISRs . . . . . . . . . . . . . . . . . . . . . . . 69
7.7
Interrupt latency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
8 WAKE-UP INTERRUPT UNIT (WIU) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
8.1
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
8.2
Main Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
8.3
Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
8.3.1
Interrupt Mode Selection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
8.3.2
Wake-up Mode Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
8.3.3
STOP Mode Entering Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
8.4
Register description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
8.5
Register map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
8.6
Programming considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
8.6.1
Procedure for Entering/Exiting STOP mode . . . . . . . . . . . . . . . . . . . . . . 79
8.6.2
Simultaneous Setting of Pending Bits . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
8.6.3
Dealing with level-active signals as interrupt lines . . . . . . . . . . . . . . . . . 80
9 DMA CONTROLLER (DMAC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
9.1
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
9.2
Main Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
9.3
Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
9.3.1
Circular mode operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
9.4
Register description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
9.4.1
Register map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
10 DRAM CONTROLLER (DRAMC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
1


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