Datasheet

Section 17 ROM
Rev.7.00 Feb. 14, 2007 page 688 of 1108
REJ09B0089-0700
17.22.2 Overview
(1) Block Diagram
FCCS
FPCS
FECS
FKEY
FMATS
FTDAR
RAMER
Control unit
Memory MAT unit
Flash memory
User MAT: 512 kbytes
User boot MAT: 8 kbytes
Operating
mode
Module bus
Mode pin
Internal address bus
Internal data bus (16 bits)
Legend:
FCCS: Flash code control and status register
FPCS: Flash program code select register
FECS: Flash erase code select register
FKEY: Flash key code register
FMATS: Flash MAT select register
FTDAR: Flash transfer destination address register
RAMER: RAM emulation register
Note: To read from or write to any of the registers above except RAMER, the FLSHE bit
in system control register 2 (SYSCR2) must be set to 1.
Figure 17.60 Block Diagram of Flash Memory