Freescale Semiconductor, Inc.
Monitor ROM (MON)
Functional Description
V
DD
M68HC08
10 kΩ
RST
0.1 µF
V
HI
10 Ω
IRQ
V
DDA
VDDA/VDDAREF
CGMXFC
0.022 µF
1
20
MC145407
+
+
+
+
10 µF
10 µF
10 µF
10 µF
OSC1
OSC2
3
4
18
17
X1
20 pF
10 MΩ
4.9152 MHz
VDD
20 pF
2
19
V
SSA
V
SS
DB-25
2
5
6
16
15
3
7
V
DD
V
DD
0.1 µF
VDD
V
DD
1
2
6
4
14
3
MC74HC125
10 kΩ
PTA0
PTC3
5
V
DD
V
DD
10 kΩ
7
10 kΩ
PTC0
PTC1
A
(SEE
NOTE.)
B
Notes: Position A — Bus clock = CGMXCLK ÷ 4 or CGMVCLK ÷ 4
Position B — Bus clock = CGMXCLK ÷ 2
Figure 13-1. Monitor Mode Circuit
MC68HC908AS60 — Rev. 1.0
Technical Data
Monitor ROM (MON)
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