HD64F2318VTE25 Renesas Electronics America, HD64F2318VTE25 Datasheet - Page 636

• 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: -

Section 17 ROM
17.8
There are three kinds of flash memory program/erase protection: hardware protection, software
protection, and error protection.
17.8.1
Hardware protection refers to a state in which programming/erasing of flash memory is forcibly
disabled or aborted. Settings in flash memory control registers 1 and 2 (FLMCR1, FLMCR2) and
erase block registers 1 and 2 (EBR1, EBR2) are reset (see table 17.11).
Table 17.11 Hardware Protection
Item
FWE pin protection
Reset/standby
protection
17.8.2
Software protection can be implemented by setting the SWE bit in flash memory control register 1
(FLMCR1), erase block registers 1 and 2 (EBR1, EBR2), and the RAMS bit in the RAM
emulation register (RAMER). When software protection is in effect, setting the P or E bit in
FLMCR1 does not cause a transition to program mode or erase mode (see table 17.12).
Rev.7.00 Feb. 14, 2007 page 602 of 1108
REJ09B0089-0700
Flash Memory Protection
Hardware Protection
Software Protection
Description
•
•
•
When a low level is input to the FWE pin,
FLMCR1, FLMCR2, EBR1, and EBR2 are
initialized, and the program/erase-protected
state is entered.
In a reset (including a WDT overflow reset)
and in standby mode, FLMCR1, FLMCR2,
EBR1, and EBR2 are initialized, and the
program/erase-protected state is entered.
In a reset via the RES pin, the reset state is
not entered unless the RES pin is held low
until oscillation stabilizes after powering on.
In the case of a reset during operation, hold
the RES pin low for the RES pulse width
specified in section 20.3.3, AC
Characteristics.
Program
Yes
Yes
Functions
Erase
Yes
Yes