MC68HC05B6_13 Datasheet, PDF (229/302 Pages) Freescale Semiconductor, Inc – Microcontrollers

Reset
Non-user mode
N
IRQ at 2xV_DD?
Y
N
TCAP1=V_DD?
Y
Y
PD4 set?
N
Y
PD2 set?
N
N
PD3 set?
Y
Y
PD1 set?
Red LED on
N
Y
SEC bit active?
N
EPROM verify _{Verify EPROM}
N
Red LED on
Green LED on
EPROM
verified?
Y
Y
SEC bit active? ^N
Erased EPROM
verification
N
EPROM erased?
Y
Green LED on
Y
N
PD1 set?
Y
D
User mode
Non-user mode
Y
SEC bit active?
N
Y
PD2 set?
N
Y
PD3 set?
N
Jump to RAM
($0051)
Red LED on
Non-user mode
Serial RAM
load/execute
Red LED on Erased EPROM verification
Figure F-3 Modes of operation flow chart (1 of 2)
14
MC68HC05B6
Rev. 4.1
MC68HC705B16N
Freescale
F-11