hd64338342hw Renesas Electronics Corporation., hd64338342hw Datasheet - Page 203

• Manufacturer Part Number: hd64338342hw
• Description: Renesas 8-bit Single-chip Microcomputer H8 Family/h8/300l Super Low Power Series
• Manufacturer: Renesas Electronics Corporation.

6.5
6.5.1
The features of the 60 Kbytes or 32 Kbytes of flash memory built into the F-ZTAT versions are
summarized below.
Programming/erase methods
Reprogramming capability
On-board programming
Programmer mode
Automatic bit rate adjustment
Programming/erasing protection
Power-down mode
The flash memory is programmed 128 bytes at a time. Erase is performed in single-block
units. The 60-Kbyte flash memory is configured as follows: 1 Kbyte
flash memory is configured as follows: 1 Kbyte × 4 blocks, 28 Kbytes × 1 block. To erase
the entire flash memory, each block must be erased in turn.
The flash memory can be reprogrammed up to 1,000 times.
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 of 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.
Sets software protection against flash memory programming/erasing.
The power supply circuit is partly halted in the subactive mode and can be read in the
power-down mode.
1 block, 16 Kbytes
Flash Memory Overview
Features
1 block, 8 Kbytes
1 block and 4 Kbytes
Rev. 6.00 Aug 04, 2006 page 167 of 680
1 block. The 32-Kbyte
4 blocks, 28 Kbytes
REJ09B0145-0600
Section 6 ROM