HD64336901G Renesas Technology, HD64336901G Datasheet - Page 121

• Manufacturer Part Number: HD64336901G
• Description: (HD64xxx Series) 16-BIT MICROCONTROLLER
• Manufacturer: Renesas Technology

The features of the 12-kbyte (including 4 kbytes as the E7 control program area) flash memory
built into the HD64F36912G and HD64F36902G are summarized below.
ROM3321A_000120030300
Programming/erase methods
Reprogramming capability
On-board programming
Automatic bit rate adjustment
Programming/erasing protection
The flash memory is programmed in 64-byte units at a time. Erase is performed in single-
block units. The flash memory is configured as follows: 1 kbyte
2 blocks. 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.
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.
Section 7 ROM
Rev. 1.00, 11/03, page 93 of 376
4 blocks and 4 kbytes