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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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L9805 데이터시트(PDF) 9 Page - STMicroelectronics |
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L9805 데이터시트(HTML) 9 Page - STMicroelectronics |
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9 / 103 page  9/103 L9805 1.5 REGISTER & MEMORY MAP As shown in the Table 1, the MCU is capable of addressing 64K bytes of memories and I/O regis- ters. In this MCU, 63742 of these bytes are user accessible. The available memory locations consist of 128 bytes of I/O registers, 256 bytes of RAM, 128 bytes of EEPROM and 16Kbytes of user EPROM/ ROM. The RAM space includes 64bytes for the stack from 0140h to 017Fh. The highest address bytes contain the user reset and interrupt vectors. Table 1. Memory Map Address Block Register La- bel Register name Reset Status Remarks 0000h 0001h 0002h 0003h Port A PADR .. PADDR .. PAOR .. Data Register Data Direction Register Option Register Not Used 00h 00h 00h R/W R/W R/W Absent 0004h 0005h 0006h 0007h Port B PBDR .. PBDDR .. PBOR .. Data Register Data Direction Register Option Register Not Used 00h 00h 00h R/W R/W R/W Absent 0008h to 000Fh RESERVED 0010h 0011h 0012h 0013h 0014h 0015h 0016h PWM1 P1CYRH .. P1CYRL .. P1DRH .. P1DRL .. P1CR .. P1CTH .. P1CTL .. PWM1 Cycle Register High PWM1 Cycle Register Low PWM1 Duty Register High PWM1 Duty Register Low PWM1 Control Register PWM1 Counter Register High PWM1 Counter Register Low 00h 00h 00h 00h 00h 00h 00h R/W R/W R/W R/W R/W Read Only Read Only 0017h RESERVED 0018h 0019h 001Ah 001Bh 001Ch 001Dh 001Eh PWM2 P2CYRH .. P2CYRL .. P2DRH .. P2DRL .. P2CR .. P2CTH .. P2CTL .. PWM2 Cycle Register High PWM2 Cycle Register Low PWM2 Duty Register High PWM2 Duty Register Low PWM2 Control Register PWM2 Counter Register High PWM2 Counter Register Low 00h 00h 00h 00h 00h 00h 00h R/W R/W R/W R/W R/W Read Only Read Only 001Fh RESERVED 0020h MISCR .. Miscellaneous Register 00h see Section 3.4 0021h Power Bridge PBCSR .. Bridge Control Status Register 00h R/W 0022h DCSR .. Dedicated Control Status Register 00h R/W 0023h to 0029h RESERVED 002Ah 002Bh WDG WDGCR .. WDGSR .. Watchdog Control Register Watchdog Status Register 7Fh 00h R/W R/W 002Ch EEPROM EECR .. EEPROM Control register 00h R/W 002Dh 002Eh EPROM ECR1 ECR2 EPROM Control register 1 EPROM Control register 2 ST INTERNAL USE ONLY 002Fh 0030h CRC CRCL CRCH CRCL Test Register CRCH Test Register ST INTERNAL USE ONLY |
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