HD64F3644DV Renesas Electronics America, HD64F3644DV Datasheet - Page 170

• Manufacturer Part Number: HD64F3644DV
• Description: IC H8/3644 MCU FLASH 64QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300Lr

Specifications of HD64F3644DV

• Core Processor: H8/300L
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: SCI
• Peripherals: PWM, WDT
• Number Of I /o: 53
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 8x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-QFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

Section 6 ROM
6.7.8
There are two modes for flash memory program/erase protection: hardware protection and
software protection. These two protection modes are described below.
Software Protection: With software protection, setting the P or E bit in the flash memory control
register (FLMCR) does not cause a transition to program mode or erase mode.
Details of software protection are given below.
Item
Block
protect
Note:
Rev. 6.00 Sep 12, 2006 page 148 of 526
REJ09B0326-0600
* Three modes: program-verify, erase-verify, and prewrite-verify.
Protect Modes
Description
Programming and erase protection can be
set for individual blocks by settings in the
erase block registers (EBR1 and EBR2).
Setting EBR1 to H'F0 and EBR2 to H'00
places all blocks in the program/erase-
protected state.
Program
Disabled
Erase
Disabled
Functions
Verify *
Enabled