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ST52T420G2PY 数据表(PDF) 3 Page - STMicroelectronics |
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ST52T420G2PY 数据表(HTML) 3 Page - STMicroelectronics |
3 / 84 page 3/84 TABLE OF CONTENTS ST52T410/T420/E420 1 GENERAL DESCRIPTION ............. .................. .......... 7 1.1 Introduction .... ...... ...... ....... ...... ....... ...... ....... ...... ...... ......7 1.2 Functional Description . ...... ....... ...... ....... ...... ....... ...... ...... ......7 1.2.1 MemoryProgramming Mode ..... ...... ....... ...... ....... ...... ...... ..... 7 1.2.2 Working mode.... ...... ....... ...... ....... ...... ....... ...... ...... ..... 8 1.3 Pin Description . ...... ...... ....... ...... ....... ...... ....... ...... ...... .....12 2 INTERNAL ARCHITECTURE........... .................. ......... 15 2.1 ST52T410/ST52x420 Operating Modes . ...... ....... ...... ....... ...... ...... .....15 2.2 Control Unit and Data Processing Unit .. ...... ....... ...... ....... ...... ...... .....15 2.2.1 Program Counter . ...... ....... ...... ....... ...... ....... ...... ...... .... 15 2.2.2 Flags ..... ...... ...... ....... ...... ....... ...... ....... ...... ...... .... 15 2.3 AddressSpaces ...... ...... ....... ...... ....... ...... ....... ...... ...... .....17 2.3.1 RAM and STACK . ...... ....... ...... ....... ...... ....... ...... ...... .... 17 2.3.2 Input Registers Bench . . . ....... ...... ....... ...... ....... ...... ...... .... 18 2.3.3 Configuration Registers .. ....... ...... ....... ...... ....... ...... ...... .... 19 2.3.4 Output Registers. . ...... ....... ...... ....... ...... ....... ...... ...... .... 20 2.4 Arithmetic Logic Unit . . . ...... ....... ...... ....... ...... ....... ...... ...... .....21 3 EPROM .......... .................. .................. ......... 24 3.1 EPROM Programming Phase Procedure ...... ....... ...... ....... ...... ...... .....25 3.1.1 EPROM Operation ...... ....... ...... ....... ...... ....... ...... ...... .... 26 3.1.2 EPROM Locking . . ...... ....... ...... ....... ...... ....... ...... ...... .... 26 3.1.3 EPROM Writing . . ...... ....... ...... ....... ...... ....... ...... ...... .... 26 3.1.4 EPROM Read/VerifyMargin Mode . ...... ....... ...... ....... ...... ...... .... 27 3.1.5 Stand by Mode ... ...... ....... ...... ....... ...... ....... ...... ...... .... 27 3.1.6 IDcode ... ...... ...... ....... ...... ....... ...... ....... ...... ...... .... 27 3.2 Eprom Erasure . ...... ...... ....... ...... ....... ...... ....... ...... ...... .....27 4 INTERRUPTS ..... .................. .................. ......... 28 4.1 Interrupt Operation .... ...... ....... ...... ....... ...... ....... ...... ...... .....28 4.2 Global Interrupt Request Enabling ..... ...... ....... ...... ....... ...... ...... .....28 4.3 Interrupt Sources ..... ...... ....... ...... ....... ...... ....... ...... ...... .....29 4.4 Interrupt Maskability . . . ...... ....... ...... ....... ...... ....... ...... ...... .....29 4.5 Interrupt Priority ...... ...... ....... ...... ....... ...... ....... ...... ...... .....31 4.6 Interrupts and Low power mode ....... ...... ....... ...... ....... ...... ...... .....33 4.7 Interrupt RESET ...... ...... ....... ...... ....... ...... ....... ...... ...... .....33 5 CLOCK,RESET &POWER SAVING MODE................. ......... 34 5.1 System Clock . . ...... ...... ....... ...... ....... ...... ....... ...... ...... .....34 5.2 RESET ....... ...... ...... ....... ...... ....... ...... ....... ...... ...... .....34 5.3 Power Saving Mode ... ...... ....... ...... ....... ...... ....... ...... ...... .....34 5.3.1 WaitMode. ...... ...... ....... ...... ....... ...... ....... ...... ...... .... 34 5.3.2 Halt Mode . ...... ...... ....... ...... ....... ...... ....... ...... ...... .... 35 TABLE OF CON- TENTS |
类似零件编号 - ST52T420G2PY |
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类似说明 - ST52T420G2PY |
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