ATtiny13A datasheet(109/174 Pages) ATMEL

109 / 174 page

109

8126D–AVR–11/09

ATtiny13A

Note:

a = address high bits, b = address low bits, H = 0 - Low byte, 1 - High Byte, o = data out, i = data in, x = don’t care

17.7 High-Voltage Serial Programming

This section describes how to program and verify Flash Program memory, EEPROM Data mem-

ory, lock bits and fuse bits in the ATtiny13A.

Figure 17-2. High-voltage Serial Programming

Read Fuse Byte

0101 H000

0000 H000

xxxx xxxx

oooo oooo

Read fuse low/high byte. Bit “0” =

programmed, “1” = unprogrammed.

See “Fuse Bytes” on page 104 for

details.

Write Fuse Byte

1010 1100

1010 H000

xxxx xxxx

iiii iiii

Set fuse low/high byte. Set bit to “0” to

program, “1” to unprogram. See “Fuse

Bytes” on page 104 for details.

Read Signature Byte

0011 0000

000x xxxx

xxxx xxbb

oooo oooo

Read Signature Byte o at address b.

Read Calibration Byte

0011 1000

000x xxxx

0000 000b

oooo oooo

Read Calibration Byte. See

“Calibration Bytes” on page 105

Poll RDY/BSY

1111 0000

0000 0000

xxxx xxxx

xxxx xxxo

If o = “1”, a programming operation is

still busy. Wait until this bit returns to

“0” before applying another command.

Table 17-9.

Serial Programming Instruction Set (Continued)

Instruction

Instruction Format

Operation

Byte 1

Byte 2

Byte 3

Byte4

VCC

GND

SDO

SII

SDI

(RESET)

+1.8 - 5.5V

PB0

PB1

PB2

PB5

+11.5 - 12.5V

PB3

SCI

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