Rainbow-electronics ATmega128RFA1 Manual do Utilizador Página 331

  • Descarregar
  • Adicionar aos meus manuais
  • Imprimir
  • Página
    / 524
  • Índice
  • MARCADORES
  • Avaliado. / 5. Com base em avaliações de clientes
Vista de página 330
331
8266A-MCU Wireless-12/09
ATmega128RFA1
Figure 22-1. SPI Block Diagram
(1)
SPI2X
SPI2X
DIVIDER
/2/4/8/16/32/64/128
Note: 1. Refer to Figure 1-1 on page 2 and Table 14-3 on page 193 for SPI pin placement.
Figure 22-2. SPI Master-slave Interconnection
SHIFT
ENABLE
The system is single buffered in the transmit direction and double buffered in the
receive direction. This means that bytes to be transmitted cannot be written to the SPI
Data Register before the entire shift cycle is completed. When receiving data, however,
a received character must be read from the SPI Data Register before the next character
has been completely shifted in. Otherwise, the first byte is lost. In SPI Slave mode, the
Vista de página 330
1 2 ... 326 327 328 329 330 331 332 333 334 335 336 ... 523 524

Comentários a estes Manuais

Sem comentários