P5F97/P5F103 User’s Manual
27
10. Modem Connector:
This 1x4 header is used for Voice Modem’s internal connector. This
allows modem’s voice can be direct to the onboard sound chip and
amplified by speaker.The pin out and connect type are different between
MD1 and MD2. MD2 is a JST type connector and MD1 is a MPC2 type
connector.
2.2.2 Setting DIP Switches
You need to configure DIP Switch to set the
1) CPU core to bus clock multiplier
2) CPU bus clock
3) CPU Core and I/O Voltage
CPU Core to Bus Clock Multiplier:
The CPU internal core clock
is equal to the “CPU Bus Clock” times the “CPU Core to Bus Clock
Multiplier”. For example, if the CPU Bus Clock is 100MHz and the
CPU Core to Bus Multiplier is 3, the actual CPU core clock will be
300MHz.
DIP Switch (SW2) selects Bus Clock Multiplier
Multiplier
SW2-P4
SW2-P5
SW2-P6
x 2.0
OFF
OFF
ON
x 2.5
OFF
ON
ON
x 3.0
OFF
ON
OFF
x 3.5
OFF
OFF
OFF
x 4.0
ON
OFF
ON
x 4.5
ON
ON
ON
x 5.0
ON
ON
OFF
x 5.5
ON
OFF
OFF
Chapter 2:Hardware Installation
1
2
3
4
MD1 Pin Assignment
MD2 Pin Assignment
1. GND
2. PHN
3. GND
4. MIC
1
2
3
4
1. MIC
2. GND
3. GND
4. PHN
8
2
4
4
3
E
X
M
D
2
M
D
1
8
2
4
4
3
E
X
ID
E
1
ID
E
2
S
W
2
S
W
1
