h8s-2172 Renesas Electronics Corporation., h8s-2172 Datasheet - Page 405

• Manufacturer Part Number: h8s-2172
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family H8s-2100 Series
• Manufacturer: Renesas Electronics Corporation.

The flash memory has the following features. Figure 14.1 shows a block diagram of the flash
memory.
14.1
• Size
• Two flash-memory MATs according to LSI initiation mode
• Programming/erasing interface by the download of on-chip program
• Programming/erasing time
• Number of programming
• Three on-board programming modes
Product Classification
H8S/2170
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
 The user boot memory MAT is initiated at a power-on reset in user boot mode: 8 kbytes
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 flash memory programming time is 3 ms (typ) in 128-byte simultaneous programming and
approximately 25 µs per byte. The erasing time is 1000 ms (typ) per 64-kbyte block.
The number of flash memory programming can be up to 100 times at the minimum. (The value
ranged from 1 to 100 is guaranteed.)
 Boot mode
 User program mode
 User boot mode
Section 14 Flash Memory (0.18-µm F-ZTAT Version)
This mode is a program mode that uses an on-chip SCI interface. The user MAT and user
boot MAT can be programmed. This mode can automatically adjust the bit rate between
host and this LSI.
The user MAT can be programmed by using the optional interface.
The user boot program of the optional interface can be made and the user MAT can be
programmed.
Features
HD64F2170
ROM Size
256 kbytes
ROM Address
H'000000 to H'03FFFF
Rev. 2.00, 03/04, page 373 of 534