TC1767
Introduction
2.3.6
Program Memory Unit (PMU)
The devices of the AudoF family contain at least one Program Memory Unit. This is
named “PMU0”. Some devices contain additional PMUs which are named “PMU1”, …
In the TC1767, the PMU0 contains the following submodules:
• The Flash command and fetch control interface for Program Flash and Data Flash.
• The Overlay RAM interface with Online Data Acquisition (OLDA) support.
• The Boot ROM interface.
• The Emulation Memory interface.
• The Local Memory Bus LMB slave interface.
Following memories are controlled by and belong to the PMU0:
• 2 Mbyte of Program Flash memory (PFlash)
• 64 Kbyte of Data Flash memory (DFlash, represents 16 Kbyte EEPROM)
• 16 Kbyte of Boot ROM (BROM)
• 8 Kbyte Overlay RAM (OVRAM)
The following figure shows the block diagram of the PMU0:
To/From
Local Memory Bus
64
LMB Interface
PMU0
Slave
Overlay RAM
PMU
Control
Interface
64
64
ROM Control
64
64
OVRAM
Flash Interface Module
64
64
BROM
DFLASH
PFLASH
Emulation
Memory
Interface
PMU0_BasicBlockDiag_generic
Emulation Memory
(ED chip only)
Figure 3
PMU0 Basic Block Diagram
Data Sheet
23
V1.3, 2009-09
INFINEON [ Infineon ]
