MPC5553/MPC5554 Microcontroller Reference Manual, Rev. 5
Freescale Semiconductor 25-25
25.9 Nexus Dual eTPU Development Interface (NDEDI)
The enhanced timing processor unit (eTPU) has its own Nexus class 3 interface, the Nexus dual eTPU
development interface (NDEDI). The two (MPC5554) eTPU engines and a coherent dual parameter
controller (CDC) appear as three separate Nexus clients. Refer to the Enhanced Time Processor Unit
Reference Manual for more information about the NDEDI module.
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
R PRN DC PIN
W
Reset for
MPC5553
0 0 0 1 1 0 000001001 0
Reset for
MPC5554
0 0 0 1 1 0 000000000 0
Reg Index 0
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
RPIN MIC 1
W
Reset for
MPC5553
0 1 0 0 0 0 000001110 1
Reset for
MPC5554
0 0 0 0 0 0 000001110 1
Reg Index 0
Figure 25-11. NDEDI Device ID Register (DID)
Table 25-17. NDEDI DID Register Field Descriptions
Bits Name Description
31–28 PRN Part revision number. Contains the revision number of the part. This field changes with
each revision of the device or module.
27–22 DC Design center. Indicates the Freescale design center. For both the MPC5554 and
MPC5553, this value is 0x20.
21–12 PIN Part identification number. Contains the part number of the device.
11–1 MIC Manufacturer identity code. Contains the reduced Joint Electron Device Engineering
Council (JEDEC) ID for Freescale, 0xE.
0 — Fixed per JTAG 1149.1
1 Always set
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