MC68HC08AS32 Datasheet, PDF (161/394 Pages) Motorola, Inc – M68HC08 Family of 8-bit microcontroller units (MCUs)

Monitor ROM (MON)
Functional Description
V_DD
10 kΩ
0.1 µF
68HC08
RST
V_DD + V_HI
10 Ω
IRQ1/V_PP
V_DDA
1
+
10 µF
3
4
10 µF
+2
MC145407
20
+
10 µF
18
20 pF
17
+
10 µF
V_DD
19
X1
4.9152 MHz
20 pF
0.1 µF
10 MΩ
DB-25
2
5
16
3
6
15
7
V_DD
1
14
MC74HC125
2
3
6
5
4
V_DD
7
NOTE: Position A — Bus clock = CGMXCLK ÷ 4 or CGMVCLK ÷ 4
Position B — Bus clock = CGMXCLK ÷ 2
10 kΩ
A
(SEE
NOTE.) ^B
Figure 12-1. Monitor Mode Circuit
V_DD
0.1 µF
V_DD
10 kΩ
V_DD
10 kΩ
V_DDA/V_DDAREF
CGMXFC
OSC1
OSC2
V_SS
V_DD
PTA0
PTC3
PTC0
PTC1
MC68HC08AS32 — Rev. 3.0
MOTOROLA
Monitor ROM (MON)
Advance Information
161