AN2184 Freescale Semiconductor / Motorola, AN2184 Datasheet - Page 4

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

Figure 19
Figure 20
Table 1
Table 2
Table 3
Table 4
Table 5
Table 6
Table 7
Part II Interchip Digital Link Mode of Operation
2.1 Introduction
The IDL mode of operation is a four-wire interface used for full-duplex communication between ICs at the
board level. This interface consists of a transmit path, a receive path, an associated clock, and a
synchronization signal. These signals are known as Dout, Din, DCL, and FSC. The clock determines the
rate of exchange of data in both transmit and receive directions and the sync controls when this exchange is
to take place. Three channels of data are exchanged every 125 microseconds. These channels consist of
two 64-kbps B channels and one 16-kbps D channel used for full-duplex communication. The waveform
diagrams are shown in Figure 1 and Figure 2.
Two modes are available:
Interchip Digital Link Mode of Operation Introduction
4
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Frame Sync (FSC)
Data Clock (DCL)
Data Out (Dout)
The 10-bit mode:
Data In (Din)
Programmable Interrupt Vector Register
Hardware Configuration
P n GMR Register Field Descriptions
P n GMT Register Field Descriptions
P n GCIR Register Field Descriptions
P n GCIT Register Field Descriptions
PIV Register Field Descriptions
Port Pins Assignment
Port Control Register Values
B1 Channel
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MCF5272 Interrupt Service Routine
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Figure 1. IDL 10-bit Mode
B2 Channel
D2 Channel
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