mc68hc05bs8 Freescale Semiconductor, Inc, mc68hc05bs8 Datasheet - Page 110

• Manufacturer Part Number: mc68hc05bs8
• Description: Mc68hc05 Family Of Low-cost Single-chip Microcontrollers.
• Manufacturer: Freescale Semiconductor, Inc

12
12.3
The bootstrap mode is provided in the EPROM part (MC68HC705BS8) as a mean of
self-programming its EPROM with minimal circuitry. It is entered on the rising edge of RESET if
IRQ pin is at 1.8V
(power-on reset) or for a time t
location $1800 to $3FDF.
Refer to Appendix A for further details on MC68HC705BS8.
12-4
Bootstrap Mode
DD
1=LED off, 0=LED on
and PB6 is at logic one. RESET must be held low for 4064 cycles after POR
PA4
1
1
1
1
1
1
1
0
0
PA3
RL
1
1
1
1
0
0
0
1
1
Flashing
Table 12-2 Self-Check Report
for any other reset. The user EPROM consists of 10K-bytes, from
OPERATING MODES
PA1
1
1
0
0
1
1
0
1
1
PA0
1
0
1
0
1
0
1
1
0
O.K. (self-check is on-going)
Bad CTimer
Bad GPWM
REMARKS
Bad port C
Bad port A
Bad port B
Bad ROM
Bad RAM
Bad IRQ
Bad KBI
MC68HC05BS8
TPG