PXS20RM Datasheet, PDF (1125/1368 Pages) Freescale Semiconductor, Inc – PXS20 Microcontroller

Chapter 34
Nexus Port Controller (NPC)
Nexus Port Controller (NPC)
34.1 Information specific to this device
This section presents device-specific parameterization, customization, and feature availability information
not specifically referenced in the remainder of this chapter.
34.1.1 Parameter values
The parameter values for this device are shown in Table 34-1.
Table 34-1. Device parameter values
Parameter
Number of MDO pins available in reduced-port
mode
Number of MDO pins available in full-port mode
Part identification number
Manufacturer identity code (MIC)
Design center code (DC)
Value
4
12
0x2A2
0x00E
0x2B
34.1.2 Unavailable features
MCKO clock gating is not supported on cut1 of this device. (It is supported on cut2/3.)
This device does not support an MCKO division factor of 3. Therefore, the setting PCR[MCKO_DIV] = 2
(see Table 34-6) is not available on this device.
Nexus DDR mode works only for MCKO division factors of 2, 4, and 8. Therefore, the setting
PCR[MCKO_DIV] = 0 (see Table 34-6) will not support Nexus DDR mode on this device.
34.2 Introduction
Figure 34-1 is a block diagram of the Nexus Port Controller (NPC) block.
Freescale Semiconductor
PXS20 Microcontroller Reference Manual, Rev. 1
34-1