Block Diagram; Figure 17.1 Block Diagram Of Flash Memory - Hitachi H8/3062 Hardware Manual

Single-chip microcomputer h8/3062 series; h8/3062b series; h8/3062f-ztat series; h8/3064f-ztat series
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17.2.2

Block Diagram

Figure 17.1 shows a block diagram of the flash memory.
FLMCR
RAMCR
FLMSR
Legend:
FLMCR : Flash memory control register
EBR
: Erase block register
RAMCR : RAM control register
FLMSR : Flash memory status register
Notes: *1 Functions as the FWE pin in the versions with on-chip flash memory, and as the RESO
pin in the versions with on-chip mask ROM.
*2 The registers that control the flash memory (FLMCR, EBR, RAMCR, and FLMSR) are
used only in the versions with on-chip flash memory. They are not provided in the
versions with on-chip mask ROM. Reading the corresponding addresses in a mask
ROM version will always return 1s, and writes to these addresses are disabled.
Internal data bus (upper 8 bits)
Internal data bus (lower 8 bits)
EBR
Bus interface/controller
H'00000
H'00002
On-chip Flash memory
H'1FFFC
H'1FFFE
even address odd address
*2
*2
*2
*2

Figure 17.1 Block Diagram of Flash Memory

H'00001
H'00003
(128 kbytes)
H'1FFFD
H'1FFFF
Operating
FWE pin
mode
Mode pins
*1
481

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