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| MC68HC05B4 Datasheet, PDF (200/298 Pages) Motorola, Inc – High-density Complementary Metal Oxide Semiconductor (HCMOS) Microcomputer Unit | |||
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Red LED ï¬ashes Y SEC bit set?
A
N
Parallel bootstrap RAM
N
PD3 set?
Serial E/EEPROM (RAM) bootstrap
PD4 set?
N
Y
Load next RAM
byte
Y
B
Transmit last four
programmed locations
N RAM1 full?
Y
Execute RAM
program at $0050
Green LED on
Execute RAM
program at $008B
Receive address
Receive four data
Y Negative
address?
N
Program E/EEPROM
data at address; green
LED ï¬ashes
14
MOTOROLA
E-12
Figure E-4 Modes of operation ï¬ow chart (2 of 2)
MC68HC705B16
TPG
MC68HC05B6
Rev. 4
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