ATMEGA8515L-8MUR Atmel, ATMEGA8515L-8MUR Datasheet - Page 182
ATMEGA8515L-8MUR
Manufacturer Part Number
ATMEGA8515L-8MUR
Description
MCU AVR 8KB FLASH 8MHZ 44QFN
Manufacturer
Atmel
Series
AVR® ATmegar
Datasheet
1.ATMEGA8515L-8MC.pdf
(257 pages)
Specifications of ATMEGA8515L-8MUR
Core Processor
AVR
Core Size
8-Bit
Speed
8MHz
Connectivity
EBI/EMI, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
35
Program Memory Size
8KB (4K x 16)
Program Memory Type
FLASH
Eeprom Size
512 x 8
Ram Size
512 x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
*
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Data Converters
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Parallel Programming
Parameters, Pin
Mapping, and
Commands
Signal Names
182
ATmega8515(L)
This section describes how to parallel program and verify Flash Program memory,
EEPROM Data memory, Memory Lock bits, and Fuse bits in the ATmega8515. Pulses
are assumed to be at least 250 ns unless otherwise noted.
In this section, some pins of the ATmega8515 are referenced by signal names describ-
ing their functionality during parallel programming, see Figure 75 and Table 85. Pins not
described in the following table are referenced by pin names.
The XA1/XA0 pins determine the action executed when the XTAL1 pin is given a posi-
tive pulse. The bit coding is shown in Table 87.
When pulsing WR or OE, the command loaded determines the action executed. The dif-
ferent Commands are shown in Table 88.
Figure 75. Parallel Programming
Table 85. Pin Name Mapping
Signal Name in Programming Mode
RDY/BSY
PAGEL
DATA
BS1
XA0
XA1
BS2
WR
OE
RDY/BSY
PAGEL
+12 V
BS2
BS1
XA0
XA1
WR
OE
PD1
PD2
PD3
PD4
PD5
PD6
PD7
RESET
XTAL1
GND
PA0
Pin Name
PB7-0
PD1
PD2
PD3
PD4
PD5
PD6
PD7
PA0
PB7 - PB0
VCC
I/O
I/O
O
I
I
I
I
I
I
I
XTAL Action Bit 0
XTAL Action Bit 1
Function
0: Device is busy programming, 1:
Device is ready for new command
Output Enable (Active low)
Write Pulse (Active low)
Byte Select 1 (“0” selects low
byte, “1” selects high byte)
Program memory and EEPROM
data Page Load
Byte Select 2 (“0” selects low
byte, “1” selects 2’nd high byte)
Bi-directional Data bus (Output
when OE is low)
+5V
DATA
2512K–AVR–01/10
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