Datasheet

Section 21 Flash Memory (0.18-μm F-ZTAT Version)
Rev.7.00 Mar. 18, 2009 page 861 of 1136
REJ09B0109-0700
Section 21 Flash Memory (0.18-μm F-ZTAT Version)
The flash memory has the following features. Figure 21.1 shows a block diagram of the flash
memory.
21.1 Features
• Size
Product Classification ROM Size ROM Address
H8S/2378 HD64F2378B
H8S/2378R HD64F2378R
512 kbytes H'000000 to H'07FFFF
(Modes 3 to 5 and 7)
H8S/2374
HD64F2374
H8S/2374R
HD64F2374R
384 kbytes H'000000 to H'05FFFF
(Modes 3 to 5 and 7)
H8S/2372
HD64F2372
H8S/2372R
HD64F2372R
H8S/2371
HD64F2371
H8S/2371R
HD64F2371R
H8S/2370
HD64F2370
256 kbytes H'000000 to H'03FFFF
(Modes 3 to 5 and 7)
H8S/2370R
HD64F2370R
• Two flash-memory MATs according to LSI initiation mode
The on-chip flash memory has two memory spaces in the same address space (hereafter
referred to as memory MATs). The mode setting in the initiation determines which memory
MAT is initiated first. The MAT can be switched by using the bank-switching method after
initiation.
⎯ The user memory MAT is initiated at a power-on reset in user mode: 256 kbytes/
384 kbytes/512 kbytes
⎯ The user boot memory MAT is initiated at a power-on reset in user boot mode: 8 kbytes
• Programming/erasing interface by the download of on-chip program
This LSI has a dedicated programming/erasing program. After downloading this program to
the on-chip RAM, programming/erasing can be performed by setting the argument parameter.
The user branch is also supported.