MC68HC05F8 Datasheet, PDF (111/126 Pages) Motorola, Inc – High-density complementary metal oxide semiconductor(HCMOS) microcontroller unit

Freescale Semiconductor, Inc.
V_PP
V_CC
VPP
PA0
TCAP
PA1
PA2
1K
1N914
PA3
PA4
reset
PA5
100K
S4
+
1µ
IRQ1
PA6
PA7
1N914
0.01µ
RESET
PB3
3.58 MHz
OSC1
OSC2
10M
MC68HC705F8
22p
22p
PB4
PB5
PB0
+5V
Program/Verify
PB1
470
PB6
PB2
470
Verify
PB7
VSS VDD
D0
A0
D1
A1
D2
A2
D3
A3
D4
D5
A4
D6
A5
D7
A6
A7
27256
A8
OE
A9
A10
+5V
A11
VPP
A12
A13
CE
A14
10K
10K
10K
+5V
QA
R
QB _HC393
QC
QD CLR
QA
R
QB _HC393
QC
QD CLR
QA
R
QB _HC393
QC
QD CLR
QA
R
QB _HC393
QC
QD CLR
+5V
S1
Open - Program & Verify
Closed - Verify
Figure 12-5 EPROM Programming Circuit for Bootstrap Mode
12.3.4 Verify EPROM Contents
The Verify EPROM Contents routine is normally entered automatically after the EPROM is
programmed. Direct entry of this mode will cause the EPROM contents to be compared to external
memory contents residing at the same address locations. During execution of the verification
routine, the Program/Verify LED is illuminated. Upon completion of the verification routine (every
location verified) the Program/Verify LED is turned off and the Verified LED is turned on. If the
Program/Verify LED does not illuminate, a discrepancy has been detected and the error address
location will be placed on the external memory address bus.
12
MC68HC05F8
OPERATING MODES
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TPG
MOTOROLA
12-7