AT90PWM2B-16SE ATMEL [ATMEL Corporation], AT90PWM2B-16SE Datasheet - Page 284

• Manufacturer Part Number: AT90PWM2B-16SE
• Description: 8-bit Microcontroller with 8K Bytes In-System Programmable Flash
• Manufacturer: ATMEL [ATMEL Corporation]

25.7
284
Serial Programming Pin Mapping
AT90PWM2/3/2B/3B
Table 25-9.
Table 25-10. Command Byte Bit Coding
Table 25-11. No. of Words in a Page and No. of Pages in the Flash
Table 25-12. No. of Words in a Page and No. of Pages in the EEPROM
Table 25-13. Pin Mapping Serial Programming
Device
AT90PWM2/2B/3/
3B
Device
AT90PWM2/2B/3/
3B
XA1
0
0
1
1
Command Byte
MOSI_A
MISO_A
Symbol
SCK_A
1000 0000
0100 0000
0010 0000
0001 0000
0001 0001
0000 1000
0000 0100
0000 0010
0000 0011
XA1 and XA0 Coding
XA0
0
1
0
1
Flash Size
EEPROM
512 bytes
(8K bytes)
4K words
Size
Action when XTAL1 is Pulsed
Load Flash or EEPROM Address (High or low address byte determined by
BS1).
Load Data (High or Low data byte for Flash determined by BS1).
Load Command
No Action, Idle
Command Executed
Chip Erase
Write Fuse bits
Write Lock bits
Write Flash
Write EEPROM
Read Signature Bytes and Calibration byte
Read Fuse and Lock bits
Read Flash
Read EEPROM
Pins
PD3
PD2
PD4
4 bytes
Page Size
32 words
Page
Size
PCWORD
EEA[1:0]
I/O
PCWORD
O
I
I
PC[4:0]
Pages
No. of
128
Pages
No. of
128
Serial Data out
Serial Data in
Description
Serial Clock
PCPAGE
EEA[8:2]
PCPAGE
PC[11:5]
4317J–AVR–08/10
EEAMSB
PCMSB
8
11