HD64F2676VFC33 Renesas Electronics America, HD64F2676VFC33 Datasheet - Page 852
HD64F2676VFC33
Manufacturer Part Number
HD64F2676VFC33
Description
IC H8S MCU FLASH 256K 144-QFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2600r
Specifications of HD64F2676VFC33
Core Processor
H8S/2600
Core Size
16-Bit
Speed
33MHz
Connectivity
IrDA, SCI
Peripherals
DMA, POR, PWM, WDT
Number Of I /o
103
Program Memory Size
256KB (256K x 8)
Program Memory Type
FLASH
Ram Size
8K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 3.6 V
Data Converters
A/D 12x10b; D/A 4x8b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
144-QFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
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Section 19 Flash Memory (F-ZTAT Version)
19.9
There are three kinds of flash memory program/erase protection: hardware protection, software
protection, and error protection.
19.9.1
Hardware protection refers to a state in which programming/erasing of flash memory is forcibly
disabled or aborted because of a transition to reset (including an overflow reset by the WDT) or
standby mode. Flash memory control register 1 (FLMCR1), flash memory control register 2
(FLMCR2), erase block register 1 (EBR1), and erase block register 2 (EBR2) are initialized. 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 the AC Characteristics section.
19.9.2
Software protection can be implemented against programming/erasing of all flash memory blocks
by clearing the SWE bit in FLMCR1 (this operation must be executed in the on-chip RAM or
external memory). 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. By setting the erase block register 1
(EBR1) and erase block register 2 (EBR2), erase protection can be set for individual blocks. When
EBR1 and EBR2 are set to H'00, erase protection is set for all blocks.
19.9.3
In error protection, an error is detected when the CPU’s runaway occurs during flash memory
programming/erasing, or operation is not performed in accordance with the program/erase
algorithm, and the program/erase operation is forcibly aborted. Aborting the program/erase
operation prevents damage to the flash memory due to overprogramming or overerasing.
When the following errors are detected during programming/erasing of flash memory, the FLER
bit in FLMCR2 is set to 1, and the error protection state is entered.
Rev. 3.00 Mar 17, 2006 page 800 of 926
REJ09B0283-0300
When flash memory is read during programming/erasing (including a vector read or instruction
fetch)
When an exception handling (excluding a reset) is started during programming/erasing
When a SLEEP instruction is executed during programming/erasing
When the CPU releases the bus mastership during programming/erasing
Program/Erase Protection
Hardware Protection
Software Protection
Error Protection
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