ATMEGA48V_06 ATMEL [ATMEL Corporation], ATMEGA48V_06 Datasheet - Page 290

• Manufacturer Part Number: ATMEGA48V_06
• Description: 8-bit Microcontroller with 8K Bytes In-System Programmable Flash
• Manufacturer: ATMEL [ATMEL Corporation]

290
ATmega48/88/168
Figure 26-1. Parallel Programming
Note:
Table 26-11. Pin Name Mapping
Table 26-12. Pin Values Used to Enter Programming Mode
Signal Name in
Programming Mode
RDY/BSY
OE
WR
BS1
XA0
XA1
PAGEL
BS2
DATA
V
PAGEL
CC
XA1
XA0
BS1
Pin
- 0.3V < AV
CC
< V
{PC[1:0]: PB[5:0]}
RDY/BSY
CC
PAGEL
+12 V
Pin Name
BS1
XA0
XA1
BS2
Prog_enable[3]
Prog_enable[2]
Prog_enable[1]
Prog_enable[0]
WR
+ 0.3V, however, AV
OE
PD1
PD2
PD3
PD4
PD5
PD6
PD7
PC2
Symbol
PD1
PD2
PD3
PD4
PD5
PD6
RESET
XTAL1
GND
PD7
PC2
PC[1:0]:PB[5:0]
I/O
I/O
O
I
I
I
I
I
I
I
CC
should always be within 4.5 - 5.5V
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)
XTAL Action Bit 0
XTAL Action Bit 1
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)
AVCC
VCC
+4.5 - 5.5V
+4.5 - 5.5V
DATA
Value
0
0
0
0
2545J–AVR–12/06