MC68HC05B6_13 Datasheet, PDF (200/302 Pages) Freescale Semiconductor, Inc – Microcontrollers

Red LED flashes ^Y
N
Parallel bootstrap RAM
SEC bit set?
A
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 flashes
14
Freescale
E-12
Figure E-4 Modes of operation flow chart (2 of 2)
MC68HC705B16
MC68HC05B6
Rev. 4.1