Freescale Semiconductor MPC5604B - Register Description

MPC5604B/C Microcontroller Reference Manual, Rev. 8
806 Freescale Semiconductor
33.6.2 Register Description
This section lists the NDI registers and describes the registers and their bit fields.
33.6.2.1 Nexus Device ID (DID) Register
The NPC device identification register, shown in Figure 33-3, allows the part revision number, design
center, part identification number, and manufacturer identity code of the device to be determined through
the auxiliary output port, and serially through TDO. This register is read-only.
33.6.2.2 Port Configuration Register (PCR)
The PCR is used to select the NPC mode of operation, enable MCKO and select the MCKO frequency,
and enable or disable MCKO gating. This register should be configured as soon as the NDI is enabled.
The PCR register may be rewritten by the debug tool subsequent to the enabling of the NPC for low power
debug support. In this case, the debug tool may set and clear the LP_DBG_EN, SLEEP_SYNC, and
STOP_SYNC bits, but must preserve the original state of the remaining bits in the register.
Reg Index: 0 Access: User read only
0123456789101112131415
R
Part Revision Number Design Center Part Identification Number
W
Reset
1
1
Part Revision Number default value is 0x0 for the device’s initial mask set and changes for each mask set revision.
* * * *100000010001
16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
R
Part Identification Number
(continued)
Manufacturer Identity Code 1
W
Reset0110000001000001
Figure 33-3. Nexus Device ID (DID) Register
Table 33-3. DID field descriptions
Field Description
0–3
PRN
Part Revision Number
Contains the revision number of the part. This field changes with each revision of the device or module.
4–9
DC
Design Center
10–19
PIN
Part Identification Number
Contains the part number of the device.
20–30
MIC
Manufacturer Identity Code
Contains the reduced Joint Electron Device Engineering Council (JEDEC) ID: 0x20.
31 Fixed per JTAG 1149.1
Always set to 1.