Rainbow Electronics ATmega8HVD - Manual (Page 139)

139
8052B–AVR–09/08
ATmega4HVD/8HVD
Table 24-14. High-voltage Serial Programming Instruction Set for ATmega4HVD/8HVD
Instruction
Instruction Format
Operation Remarks Instr.1/5 Instr.2/6 Instr.3 Instr.4
Chip Erase
SDI
SII
SDO
0_1000_0000_00
0_0100_1100_00
x_xxxx_xxxx_xx
0_0000_0000_00
0_0110_0100_00
x_xxxx_xxxx_xx
0_0000_0000_00
0_0110_1100_00
x_xxxx_xxxx_xx
Load
“Write Flash”
Command SDI
SII
SDO
0_0001_0000_00
0_0100_1100_00
x_xxxx_xxxx_xx
Load Flash
Page Buffer
SDI
SII
SDO
0_ bbbb_bbbb _00 (1)
0_0000_1100_00
x_xxxx_xxxx_xx
0_eeee_eeee_00
0_0010_1100_00
x_xxxx_xxxx_xx
0_dddd_dddd_00
0_0011_1100_00
x_xxxx_xxxx_xx
0_0000_0000_00
0_0111_1101_00
x_xxxx_xxxx_xx
SDI
SII
SDO
0_0000_0000_00
0_0111_1100_00
x_xxxx_xxxx_xx
Load Flash High
Address and
Program Page SDI
SII
SDO
0_000a_aaaa_00
0_0001_1100_00
x_xxxx_xxxx_xx
0_0000_0000_00
0_0110_0100_00
x_xxxx_xxxx_xx
0_0000_0000_00
0_0110_1100_00
x_xxxx_xxxx_xx
Load
“Read Flash”
Command SDI
SII
SDO
0_0000_0010_00
0_0100_1100_00
x_xxxx_xxxx_xx
Read Flash Low
and High Bytes
SDI
SII
SDO
0_bbbb_bbbb_00 (1)
0_0000_1100_00
x_xxxx_xxxx_xx
0_000a_aaaa_00
0_0001_1100_00
x_xxxx_xxxx_xx
0_0000_0000_00
0_0110_1000_00
x_xxxx_xxxx_xx
0_0000_0000_00
0_0110_1100_00
q_qqqq_qqqx_xx
SDI
SII
SDO
0_0000_0000_00
0_0111_1000_00
x_xxxx_xxxx_xx
0_0000_0000_00
0_0111_1100_00
p_pppp_pppx_xx
Load “Write
EEPROM”
Command SDI
SII
SDO
0_0001_0001_00
0_0100_1100_00
x_xxxx_xxxx_xx
Load EEPROM
Page Buffer
SDI
SII
SDO
0_0bbb_bbbb_00
0_0000_1100_00
x_xxxx_xxxx_xx
0_eeee_eeee_00
0_0010_1100_00
x_xxxx_xxxx_xx
0_0000_0000_00
0_0110_1101_00
x_xxxx_xxxx_xx
0_0000_0000_00
0_0110_1100_00
x_xxxx_xxxx_xx
Program
EEPROM Page
SDI
SII
SDO
0_0000_0000_00
0_0110_0100_00
x_xxxx_xxxx_xx
0_0000_0000_00
0_0110_1100_00
x_xxxx_xxxx_xx
Write
EEPROM
Byte
(2)
SDI
SII
SDO
0_0bbb_bbbb_00
0_0000_1100_00
x_xxxx_xxxx_xx
0_eeee_eeee_00
0_0010_1100_00
x_xxxx_xxxx_xx
0_0000_0000_00
0_0110_1101_00
x_xxxx_xxxx_xx
0_0000_0000_00
0_0110_0100_00
x_xxxx_xxxx_xx
SDI
SII
SDO
0_0000_0000_00
0_0110_1100_00
x_xxxx_xxxx_xx
Load “Read
EEPROM”
Command SDI
SII
SDO
0_0000_0011_00
0_0100_1100_00
x_xxxx_xxxx_xx