ATMEGA128L-8MJ Atmel, ATMEGA128L-8MJ Datasheet - Page 165
![no-image](/images/manufacturer_photos/0/0/78/atmel_sml.jpg)
ATMEGA128L-8MJ
Manufacturer Part Number
ATMEGA128L-8MJ
Description
IC MCU AVR 128K 8MHZ LV 64-QFN
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA128L-8MJ
Core Processor
AVR
Core Size
8-Bit
Speed
8MHz
Connectivity
EBI/EMI, I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
53
Program Memory Size
128KB (64K x 16)
Program Memory Type
FLASH
Eeprom Size
4K x 8
Ram Size
4K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
64-MLF®, 64-QFN
For Use With
ATSTK501 - ADAPTER KIT FOR 64PIN AVR MCU
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
- Current page: 165 of 385
- Download datasheet (8Mb)
2467V–AVR–02/11
The following code examples show how to initialize the SPI as a slave and how to perform a sim-
ple reception.
Note:
Assembly Code Example
C Code Example
SPI_SlaveInit:
SPI_SlaveReceive:
void SPI_SlaveInit(void)
{
}
char SPI_SlaveReceive(void)
{
}
; Set MISO output, all others input
ldi
out
; Enable SPI
ldi
out
ret
; Wait for reception complete
sbis SPSR,SPIF
rjmp SPI_SlaveReceive
; Read received data and return
in
ret
/* Set MISO output, all others input */
DDR_SPI = (1<<DD_MISO);
/* Enable SPI */
SPCR = (1<<SPE);
/* Wait for reception complete */
while(!(SPSR & (1<<SPIF)))
/* Return data register */
return SPDR;
1. See “About Code Examples” on page 8.
;
r17,(1<<DD_MISO)
DDR_SPI,r17
r17,(1<<SPE)
SPCR,r17
r16,SPDR
(1)
(1)
ATmega128
165
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