h8s-2649 Renesas Electronics Corporation., h8s-2649 Datasheet - Page 567
h8s-2649
Manufacturer Part Number
h8s-2649
Description
Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.H8S-2649.pdf
(766 pages)
- Current page: 567 of 766
- Download datasheet (5Mb)
The features of the flash memory are summarized below.
The block diagram of the flash memory is shown in figure 19.1.
19.1
• Size
• Programming/erase methods
• Reprogramming capability
• Two on-board programming modes
• Programmer mode
• Automatic bit rate adjustment
• Programming/erasing protection
Product Type
H8S/2649F
The flash memory is programmed in 128-byte units at a time. Erase is performed in single-
block units. The flash memory is configured as follows: 64 kbytes × 3 blocks, 32 kbytes × 1
block, and 4 kbytes × 8 blocks. To erase the entire flash memory, each block must be erased in
turn.
The flash memory can be reprogrammed for 100 times.
Boot mode
User program mode
On-board programming/erasing can be done in boot mode, in which the boot program built
into the chip is started to erase or program the entire flash memory. In normal user program
mode, individual blocks can be erased or programmed.
Flash memory can be programmed/erased in programmer mode using a PROM programmer,
as well as in on-board programming mode.
For data transfer in boot mode, this LSI's bit rate can be automatically adjusted to match the
transfer bit rate of the host.
There are three protect modes, hardware, software, and error protect, which allow protected
status to be designated for flash memory program/erase operations.
Features
ROM Size
256 kbytes
Section 19 ROM
ROM Address
H'000000 to H'03FFFF
Rev. 2.00 Dec. 05, 2005 Page 529 of 724
REJ09B0200-0200
Section 19 ROM
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