PXD10RM Datasheet, PDF (551/1332 Pages) Freescale Semiconductor, Inc – PXD10 Microcontroller

Chapter 17
Flash Memory
17.1 Introduction
The flash memory comprises a platform flash controller (PFlash) interface and three flash memory arrays:
two arrays of up to 512 KB for Code (CFlash) and one array of 64 KB for Data (DFlash). The flash memory
architecture of this device is illustrated in Figure 17-1. See Table 2-1 in Chapter 2, Memory Map, for exact
memory sizes of each family member.
XBAR
Via Port Splitter
PFlash Controller
4x128 P-Buffer
4x128 P-Buffer
1x128 P-Buffer
4x128 P-Buffer
4x128 P-Buffer
1x128 P-Buffer
128
512K
(2x16K
3x32K
3x128K)
128
64K
(4x16K)
(for EEE)
128
512K
(4x128K)
Code Flash
Array 0
(Bank 0)
Data Flash
Array 0
(Bank 1)
Code Flash
Array 1
(Bank 2)
Figure 17-1. PXD10 flash memory architecture
17.2 Program flash memory (Code Flash 0 and Code Flash 1)
17.2.1 Introduction
The primary function of the Program Flash Module is to serve as electrically programmable and erasable
non-volatile memory.
Non-volatile memory may be used for instruction and/or data storage.
Freescale Semiconductor
PXD10 Microcontroller Reference Manual, Rev. 1
Preliminary—Subject to Change Without Notice
17-1