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| MC68HC08GP32A Datasheet, PDF (227/258 Pages) Freescale Semiconductor, Inc – Microcontrollers | |||
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Monitor Module (MON)
Table 19-2. Mode Selection
Mode
IRQ RST
Serial
Comm.
Mode
Selection
Divider
PLL
PTA0 PTA7 PTC0 PTC1 PTC3
COP
Communication
Speed
External Bus
Comments
Baud
Clock Frequency Rate
VDD
VTST or
1
0
1
0
Monitor
VTST
VTST
VDDor
VTST
1
0
1
0
0
Off Disabled
4.9152
MHz
2.4576
MHz
9600 PTC3
determines
frequency
1
Off Disabled
9.8304
MHz
2.4576
MHz
9600 divider
VDD
User or VDD X
X
X
X
VSS
X
X Enabled
X
X
X
MON08
Function
VTST
[Pin No.] [6]
RST
[4]
COM SSEL MOD0 MOD1
[8] [10] [12] [14]
DIV4
[16]
OSC1
[13]
1. PTA0 must have a pullup resistor to VDD in monitor mode.
2. Communication speed in the table is an example to obtain a baud rate of 9600.
Baud rate using external oscillator is bus frequency / 256.
3. External clock is a 4.9152 or 9.8304 MHz canned oscillator on OSC1.
4. X = donât care
5. MON08 pin refers to P&E Microcomputer Systemsâ MON08-Cyclone 2 by 8-pin connector.
NC 1
NC 3
NC 5
NC 7
NC 9
NC 11
OSC1 13
VDD 15
2 GND
4 RST
6 IRQ
8 PTA0
10 PTA7
12 PTC0
14 PTC1
16 PTC3
MC68HC08GP32A ⢠MC68HC08GP16A Data Sheet, Rev. 1.0
Freescale Semiconductor
227
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