mc68hc908gr8vp Freescale Semiconductor, Inc, mc68hc908gr8vp Datasheet - Page 132

• Manufacturer Part Number: mc68hc908gr8vp
• Description: M68hc08 Microcontrollers Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

Monitor ROM (MON)
132
DB-25
10 μF
10 μF
Notes:
2
3
7
1. SW2, SW3, and SW4: Position C — Enter monitor mode using external oscillator.
2. See
+
+
SW2, SW3, and SW4: Position D — Enter monitor mode using external XTAL and internal PLL.
Table 15-1. Monitor Mode Signal Requirements and Options
1
3
4
2
5
6
MC145407
MC68HC908GR8 • MC68HC908GR4 Data Sheet, Rev. 7
20
18
17
19
16
15
Figure 15-1. Monitor Mode Circuit
+
+
32.768 kHz XTAL
10 μF
10 μF
6–30 pF
V
1
2
6
4
7
DD
MC74HC125
(SEE NOTE 3)
6–30 pF
330 kΩ
10 kΩ
14
3
5
V
D
C
C
C
D
TST
V
DD
D
SW2
(SEE NOTE 2)
SW4
(SEE NOTE 2)
SW3
for IRQ voltage level requirements.
0.033 μF
(SEE NOTES 2
10 k
0.1 μF
0.1 μF
AND 3)
10 kΩ
10 kΩ
10 kΩ
10 kΩ
V
V
V
DDA
DD
DD
V
DD
V
CGMXFC
PTA1
V
RST
IRQ
OSC1
OSC2
V
V
V
V
PTA0
PTB0
PTB1
DDA
SS
DD
DDAD
SSAD
SSA
68HC08
/V
/V
REFL
REFH
Freescale Semiconductor