PXN20 Product Brief, Rev. 1

Application Examples

Freescale Semiconductor

2

the PXN21 has 128 KB on-chip L2 SRAM. Refer to Table 1 for specific memory and feature sets of the

family members.

1

Application Examples

The PXN20 can be used for a variety of communication applications, such as industrial gateways and

process control.

2Features

This section describes the features of the PXN20 devices.

2.1

PXN20 Features

Table 1 provides a summary of the different members of the PXN20 family and their features.

Table 1. PXN20 Family Feature Set

Feature

PXN20

PXN21

Central Processing Unit (CPU)

e200z650

e200z650

Cache

32K, 4/8way

32K, 4/8way

Floating Point Unit (FPU)

Yes

Yes

Signal Processing Engine (SPE)

Yes

Yes

Memory Management Unit (MMU)

32 entry

32 entry

CPU Execution Speed

Static, 116 MHz

Static, 116 MHz

Input/Output Processor (IOP)

e200z0

e200z0

IOP Execution Speed

1/2 CPU execution speed

1/2 CPU execution speed

Flash with ECC

2 MB

2 MB

Data Flash Block

8x16 KB

8x16 KB

RAM with ECC

592 KB

128 KB

Memory Protection Unit (MPU)

No

16 entry

Direct Memory Access Unit (eDMA)

16 Channel

32 Channel

Ethernet (FEC)

Yes

No

MediaLB (MLB-DIM)

Yes

No

FlexRay Controller

Yes (128 Message Buffers)

No

Analog-to-Digital Converter (ADC)

36 internal channels, 10-bit

Supports 32 external channels

64 internal channels, 10-bit

Supports 32 external channels

Total Timer I/O (eMIOS200)

24 channels, 16-bit

32 channels, 16-bit

Cross Trigger Unit (CTU)

No

Yes

Asynchronous Serial Interfaces (UART)

6

12

Synchronous Serial Interfaces (SPI)

4

4