Specifications

161
3706C–MICRO–2/11
AT89LP3240/6440
For a summary of available commands, see Table 25-2 on page 162.
Figure 25-4. Command Sequence Flow Chart
Figure 25-5. ISP Command Packet (Serial)
Figure 25-6. ISP Command Packet (Parallel)
Input Preamble 2
(55h)
Input Opcode
Input Address
High Byte
Input Address
Low Byte
Input/Output
Data
Address +1
Input Preamble 1
(AAh)
70654321 7 0654321 7 0654321 7 0654321
70654321
SS
SCK
MOSI
MISO
Preamble 2 Opcode Address High Address Low Data In
Data Out
X
XXX
Preamble 1
X
SS
SCK
P0
55h
Opcode Address High Address Low
AAh
Data In
OE
WRITE
P0
55h
Opcode Address High Address Low
AAh
Data Out
OE
READ