HD64F2318VTE25 Renesas Electronics America, HD64F2318VTE25 Datasheet - Page 773

• Manufacturer Part Number: HD64F2318VTE25
• Description: IC H8S MCU FLASH 256K 100-QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2300r

Specifications of HD64F2318VTE25

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 25MHz
• Connectivity: SCI, SmartCard
• Peripherals: POR, PWM, WDT
• Number Of I /o: 71
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 3.6 V
• Data Converters: A/D 8x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 100-TQFP, 100-VQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

17.25.2 Software Protection
Software protection is set up in any of three ways: by disabling the downloading of on-chip
programs for programming and erasing, by means of a key code, and by the RAM-emulation
register.
Table 17.55 Software Protection
Item
Protection by the
SCO bit
Protection by the
FKEY register
Emulation protection •
17.25.3 Error Protection
Error protection is a mechanism for aborting programming or erasure when an error occurs, in the
form of the microcomputer entering runaway during programming/erasing of the flash memory or
operations that are not according to the established procedures for programming/erasing. Aborting
programming or erasure in such cases prevents damage to the flash memory due to excessive
programming or erasing.
If the microcomputer malfunctions during programming/erasing of the flash memory, the FLER
bit in the FCCS register is set to 1 and the device enters the error-protection state, and this aborts
the programming or erasure.
The FLER bit is set in the following conditions:
Description
•
•
Clearing the SCO bit in the FCCS
register makes the device enter a
program/erase-protected state, and
this disables the downloading of the
programming/erasing programs.
Downloading and
programming/erasing are disabled
unless the required key code is
written in the FKEY register. Different
key codes are used for downloading
and for programming/erasing.
Setting the RAMS bit in the RAM
emulation register (RAMER) makes
the device enter a program/erase-
protected state.
Rev.7.00 Feb. 14, 2007 page 739 of 1108
Download
Function to Be Protected
REJ09B0089-0700
Section 17 ROM
Program/Erase