PXD10RM Datasheet, PDF (636/1332 Pages) Freescale Semiconductor, Inc – PXD10 Microcontroller

17.4 Platform flash controller (PFLASH2P_LCA)
17.4.1 Introduction
This section provides an introduction to the 2-port Platform Flash Controller (PFLASH2P_LCA). The
PFLASH2P_LCA acts as the interface between two system bus master ports (AHB-Lite 2.v6) and up to
three banks of integrated low-cost 90-nm flash memory arrays. It intelligently converts the protocols
between the system bus ports and the dedicated flash array interfaces.
A block diagram of the e200z0h Power Architecture reduced product platform (RPP) reference design is
shown below in Figure 17-42 with the PFLASH2P_LCA module and its attached off-platform flash
memory arrays highlighted.
e200z0h Core
Branch Unit
I-Fetcher
Load/Store
Unit
Dispatch
Debug
Nexus1,
GPR
Integer Nexus2+
Unit
AHB BIU
p_d_h*
p_i_h*
Off-Platform
Master
s0
m0
m1
s1
XBAR
MPU
m3
s2
m2
s7
PFLASH2P
PRAM
MemArray
Bank2
Flash Regs
MemArray
Bank1
Flash Regs
MemArray
Bank0
Flash Regs
MemArray
Mem
eDMA
STM
SWT
ECSM
IPS/APB
IPS Bus
IPS+APB Bus
IPS+APB
Slave
Modules
INTC
On-platform IRQs
Off-Platform IRQs
Figure 17-42. Power Architecture e200z0h RPP Reference Platform Block Diagram
As shown in this block diagram, there are a number of baseline and optional modules (shaded) supported.
The module list includes:
• Power Architecture e200z0h core with Nexus1 or optional Nexus2+ debug
17-86
PXD10 Microcontroller Reference Manual, Rev. 1
Preliminary—Subject to Change Without Notice
Freescale Semiconductor