Datasheet

Section 21 Flash Memory
Rev. 2.00 Sep. 28, 2009 Page 644 of 870
REJ09B0429-0200
FCCS
FPCS
FECS
FKEY
FMATS
Control unit
Memory MAT unit
Flash memory
User MAT: 512 Kbytes
User boot MAT: 16 Kbytes
Operating
mode
Module bus
FWE pin
Mode pin
Internal address bus
Internal data bus (16 bits)
[Legend]
FCCS: Flash code control 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
To read from or write to the registers, the FLSHE bit in the serial timer control
register (STCR) must be set to 1.
Note:
FTDAR
Figure 21.1 Block Diagram of Flash Memory