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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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MCP4441 데이터시트(PDF) 42 Page - Microchip Technology |
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MCP4441 데이터시트(HTML) 42 Page - Microchip Technology |
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42 / 100 page  MCP444X/446X DS22265A-page 42 © 2010 Microchip Technology Inc. 4.2 Memory Map The device memory has 16 locations that are 9-bit wide (16x9 bits). This memory space contains both volatile and nonvolatile locations (see Table 4-1). TABLE 4-1: MEMORY MAP AND THE SUPPORTED COMMANDS Address Function Memory Type Allowed Commands Disallowed Commands (2) Factory Initialization 00h Volatile Wiper 0 RAM Read, Write, Increment, Decrement — — 01h Volatile Wiper 1 RAM Read, Write, Increment, Decrement — — 02h Nonvolatile Wiper 0 EEPROM Read, Write (1) Increment, Decrement 8-bit 80h 7-bit 40h 03h Nonvolatile Wiper 1 EEPROM Read, Write (1) Increment, Decrement 8-bit 80h 7-bit 40h 04h Volatile TCON0 Register RAM Read, Write Increment, Decrement — 05h Status Register RAM Read Write, Increment, Decrement — 06h Volatile Wiper 2 RAM Read, Write, Increment, Decrement — — 07h Volatile Wiper 3 RAM Read, Write, Increment, Decrement — — 08h Nonvolatile Wiper 2 EEPROM Read, Write (1) Increment, Decrement 8-bit 80h 7-bit 40h 09h Nonvolatile Wiper 3 EEPROM Read, Write (1) Increment, Decrement 8-bit 80h 7-bit 40h 0Ah Volatile TCON1 Register RAM Read, Write Increment, Decrement — 0Bh Data EEPROM EEPROM Read, Write (1) Increment, Decrement 000h 0Ch Data EEPROM EEPROM Read, Write (1) Increment, Decrement 000h 0Dh Data EEPROM EEPROM Read, Write (1) Increment, Decrement 000h 0Eh Data EEPROM EEPROM Read, Write (1) Increment, Decrement 000h 0Fh Data EEPROM EEPROM Read, Write (1) Increment, Decrement 000h Note 1: When an EEPROM write is active, these are invalid commands and will generate an error condition. The user should use a read of the Status register to determine when the write cycle has completed. To exit the error condition, the user must take the HVC pin to the VIH level and then back to the active state (VIL or VIHH). 2: This command on this address will generate an error condition. To exit the error condition, the user must take the HVC pin to the VIH level and then back to the active state (VIL or VIHH). |
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