ATTINY26L8SU SL383 Atmel, ATTINY26L8SU SL383 Datasheet - Page 113

• Manufacturer Part Number: ATTINY26L8SU SL383
• Description: MCU 8-Bit ATtiny AVR RISC 2KB Flash 3.3V/5V 20-Pin SOIC T/R
• Manufacturer: Atmel

1477J–AVR–06/07
Table 56. XA1 and XA0 Coding
Note:
Table 57. Command Byte Bit Coding
XA1
0
0
1
1
Command Byte
1. [XA1, XA0] = 0b11 is “No Action, Idle”. As long as XTAL1 is not pulsed, the Com-
XA0
1000 0000
0100 0000
0010 0000
0001 0000
0001 0001
0000 1000
0000 0100
0000 0010
0000 0011
0
1
0
1
mand, Address, and Data Registers remain unchanged. Therefore, there are no
problems using BS2 as described below even though BS2 is multiplexed with XA1.
BS2 is only asserted when reading the fuses (OE is low) and XTAL1 is not pulsed.
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
(1)
ATtiny26(L)
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