B&R BRCOMP1-0 Anwenderhandbuch Seite 237

33. ADDITIONAL USER EEPROM
The user is provided with 16 Kbytes of additional EEPROM memory. It is split up into 8 blocks of
2 Kbytes each. The desired block is defined with the first 3 bits of the Inport/Outport byte
(address $3400).
Example Definition of block 6 of the additional EEPROM.
LDD
XGDX
LDAA
ANDA
ORAA
STAA
$3FFF
$3800
The user can access the selected block of the additional EEPROM via addresses $3800 to $3FFF.
# $3400
X 000
# %11111000
# 006
X 000
Additional user
EEPROM
Load accu. D with $3400
Set index register to address $3400
Load contents to accu. A
Clear bits 0 to 2
Define block 6
Store accu. A to address $3400
16 Kbyte
additional EEPROM
Block 7
Block 6
Block 5
Block 4
Block 3
Block 2
Block 1
Block 0
B&R COMPACT PLC
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