Os motores de busca de Datasheet de Componentes eletrônicos |
|
ATTINY2313-20MU Folha de dados(PDF) 19 Page - ATMEL Corporation |
|
ATTINY2313-20MU Folha de dados(HTML) 19 Page - ATMEL Corporation |
19 / 231 page 19 ATtiny2313/V 2543I–AVR–04/06 • Bits 6..0 – EEAR6..0: EEPROM Address The EEPROM Address Register – EEAR specify the EEPROM address in the 128 bytes EEPROM space. The EEPROM data bytes are addressed linearly between 0 and 127. The initial value of EEAR is undefined. A proper value must be written before the EEPROM may be accessed. The EEPROM Data Register – EEDR • Bits 7..0 – EEDR7..0: EEPROM Data For the EEPROM write operation, the EEDR Register contains the data to be written to the EEPROM in the address given by the EEAR Register. For the EEPROM read oper- ation, the EEDR contains the data read out from the EEPROM at the address given by EEAR. The EEPROM Control Register – EECR • Bits 7..6 – Res: Reserved Bits These bits are reserved bits in the ATtiny2313 and will always read as zero. • Bits 5, 4 – EEPM1 and EEPM0: EEPROM Programming Mode Bits The EEPROM Programming mode bits setting defines which programming action that will be triggered when writing EEPE. It is possible to program data in one atomic opera- tion (erase the old value and program the new value) or to split the Erase and Write operations in two different operations. The Programming times for the different modes are shown in Table 1. While EEPE is set, any write to EEPMn will be ignored. During reset, the EEPMn bits will be reset to 0b00 unless the EEPROM is busy programming. • Bit 3 – EERIE: EEPROM Ready Interrupt Enable Writing EERIE to one enables the EEPROM Ready Interrupt if the I-bit in SREG is set. Writing EERIE to zero disables the interrupt. The EEPROM Ready Interrupt generates a constant interrupt when Non-volatile memory is ready for programming. Bit 7654 321 0 MSB LSB EEDR Read/Write R/W R/W R/W R/W R/W R/W R/W R/W Initial Value 0000 000 0 Bit 7654 3 2 1 0 – – EEPM1 EEPM0 EERIE EEMPE EEPE EERE EECR Read/Write R R R/W R/W R/W R/W R/W R/W Initial Value 0 0 X X 0 0 X 0 Table 1. EEPROM Mode Bits EEPM1 EEPM0 Programming Time Operation 0 0 3.4 ms Erase and Write in one operation (Atomic Operation) 0 1 1.8 ms Erase Only 1 0 1.8 ms Write Only 1 1 – Reserved for future use |
Nº de peça semelhante - ATTINY2313-20MU |
|
Descrição semelhante - ATTINY2313-20MU |
|
|
Ligação URL |
Privacy Policy |
ALLDATASHEETPT.COM |
ALLDATASHEET é útil para você? [ DONATE ] |
Sobre Alldatasheet | Publicidade | Contato conosco | Privacy Policy | roca de Link | Lista de Fabricantes All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |