ATmega48PA Automotive Atmel Corporation, ATmega48PA Automotive Datasheet - Page 166
ATmega48PA Automotive
Manufacturer Part Number
ATmega48PA Automotive
Description
Manufacturer
Atmel Corporation
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19. SPI – Serial Peripheral Interface
19.1
19.2
166
Features
Overview
Atmel ATmega48PA/88PA/168PA [Preliminary]
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The Serial Peripheral Interface (SPI) allows high-speed synchronous data transfer between
the Atmel
devices.
The USART can also be used in Master SPI mode, see “USART in SPI Mode” on page 202.
The PRSPI bit in
enable SPI module.
Figure 19-1. SPI Block Diagram
Note:
Full-duplex, Three-wire Synchronous Data Transfer
Master or Slave Operation
LSB First or MSB First Data Transfer
Seven Programmable Bit Rates
End of Transmission Interrupt Flag
Write Collision Flag Protection
Wake-up from Idle Mode
Double Speed (CK/2) Master SPI Mode
1. Refer to
®
/2/4/8/16/32/64/128
ATmega48PA/88PA/168PA and peripheral devices or between several AVR
DIVIDER
“Minimizing Power Consumption” on page 42
Figure 1-1 on page
(1)
2, and
Table 14-3 on page 81
for SPI pin placement.
must be written to zero to
9223B–AVR–09/11
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