Datasheet

Table Of Contents
Section 19 Flash Memory (F-ZTAT Version)
Page 628 of 846 REJ09B0140-0900 Rev. 9.00
Sep 16, 2010
H8S/2215 Group
Flash memory emulation in RAM
Flash memory programming can be emulated in real time by overlapping a part of RAM
onto flash memory.
Module bus
Bus interface/controller
Flash memory
(256 kbytes)
Operating
mode
FLMCR2
Internal data bus (upper 8 bits)
Internal data bus (lower 8 bits)
FWE pin
Mode pins
(MD2 to MD0)
PF3, PF0, P16, P14
EBR1
EBR2
RAMER
FLMCR1
Flash memory control register 1
Flash memory control register 2
Erase block register 1
Erase block register 2
RAM emulation register
Legend:
FLMCR1:
FLMCR2:
EBR1:
EBR2:
RAMER:
H'000000
H'000002
H'000001
H'000003
H'03FFFE H'03FFFF
Figure 19.1 Block Diagram of Flash Memory