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| MC68711E20CFNE3 Datasheet, PDF (206/242 Pages) – | |||
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Driving Boot Mode from Another M68HC11
M68HC11EVBU
PREWIRED AREA
WIRE-WRAP AREA
COM +12.25V
P4 P5
PE7 50
MASTER
MCU
U3
50 50
PB7 35
35 35
PB1 41
PB0 42
XTAL 8
MODB 2
TxD 21
41 41
42 42
J6
88
J3
21 21
RxD 20
J8
20 20
J9
R11
+ 100
R14
C18
15K
20 µ F
ON
V PP
OFF
S2
R8
3.3K
R12 1K
R13 1K
D5
RED
D6
GREEN
V DD
R10
15K
[1]
R9
10K
[2]
R15
10K
18
17
V DD
26
C17
0.1 µ F
1
V DD
R7
7
35
10K
20
21
3
2
MC68HC711E9
XIRQ/V PPE
RESET
VDD
VSS
EXTAL
TARGET
MCU
U6
PB7
RxD
TxD
MODA
MODB
TO/FROM
RS232 LEVEL
TRANSLATOR
U4
Figure 6. MCU-to-MCU EPROM Duplicator Schematic
M68HC11 Bootstrap Mode, Rev. 1.1
206
Freescale Semiconductor
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