AN2184 Freescale Semiconductor / Motorola, AN2184 Datasheet - Page 25

• Manufacturer Part Number: AN2184
• Description: MCF5272 Interrupt Service Routine for the Physical Layer Interface Controller
• Manufacturer: Freescale Semiconductor / Motorola

7.7 Software Configuration
This section describes software configuration.
7.7.1 Customer Premises Equipment (CPE)
Depending on the CPE board used, the control software will run differently. This gives the user the ability
to control the sourcing transceiver. If the MC145572EVK is used, the RS232 cable is connected and the
embedded software will automatically come up with power-on reset. If the MC145574EVK is used, the
scp.exe software must be run on a Windows-based PC. (Note: scp.exe software will not run on Windows
NT.) Please refer to the specific EVK user’s manual for more detailed information about the hardware and
software for each.
7.7.2 ColdFire Port Configuration
Writing into the ColdFire core general purpose registers must configure the TDM pins of the MCF5272.
With power-on reset, port1 will be automatically configured. Then port0 and some pins of port3 must be
configured as a result of the GPIO register access. Table 6 shows the values.
FSC0
DCL0
Din0
Dout0
DREQ0
DGRANT0
FSC1
DCL1 / DCL2
PC
Port Pins
Freescale Semiconductor, Inc.
BDM Cable
For More Information On This Product,
MCF5272 Interrupt Service Routine
Figure 20. Hardware Configuration
Table 6. Port Pin Assignments
Go to: www.freescale.com
M5272C3
Configured by
Reset
Reset
PortA
PortD
PortD
PortD
PortA
PortA
PCI Sockets
Field in Control
PACNT10
Register
PDCNT0
PDCNT1
PDCNT4
PACNT8
PACNT9
U or T lines
N/A
N/A
Assembly Code Software Configuration
Coax Cables
For BER Measurement
PC
Control Register
Value (Binary)
MC145572EVK
MC145574EVK
01
01
01
01
01
01
BER Tester
HP1645A
RS232 Cable
Map BGA Pin
M1
K1
K4
K5
L4
J2
J4
J3
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