DF2148RTE20IV Renesas Electronics America, DF2148RTE20IV Datasheet - Page 713
DF2148RTE20IV
Manufacturer Part Number
DF2148RTE20IV
Description
MCU 5V 128K I-TEMP,PB-FREE, 100-
Manufacturer
Renesas Electronics America
Series
H8® H8S/2100r
Specifications of DF2148RTE20IV
Core Processor
H8S/2000
Core Size
16-Bit
Speed
20MHz
Connectivity
Host Interface, I²C, IrDA, SCI
Peripherals
POR, PWM, WDT
Number Of I /o
74
Program Memory Size
128KB (128K x 8)
Program Memory Type
FLASH
Ram Size
4K x 8
Voltage - Supply (vcc/vdd)
4 V ~ 5.5 V
Data Converters
A/D 8x10b; D/A 2x8b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
100-TQFP, 100-VQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
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22.8
There are three kinds of flash memory program/erase protection: hardware protection, software
protection, and error protection.
22.8.1
Hardware protection refers to a state in which programming/erasing of flash memory is forcibly
disabled or aborted. Hardware protection is reset by settings in flash memory control registers 1
and 2 (FLMCR1, FLMCR2) and erase block registers 1 and 2 (EBR1, EBR2). (See table 22.8.)
Table 22.8 Hardware Protection
22.8.2
Software protection can be implemented by setting the SWE bit in FLMCR1 and erase block
registers 1 and 2 (EBR1, EBR2). When software protection is in effect, setting the P or E bit in
flash memory control register 1 (FLMCR1) does not cause a transition to program mode or erase
mode. (See table 22.9.)
Item
Reset/standby
protection
Flash Memory Protection
Hardware Protection
Software Protection
Section 22 ROM
Description
In a reset (including a WDT overflow reset),
software standby mode, subactive mode,
subsleep mode, and watch 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 the AC Characteristics section.
(Mask ROM Version, H8S/2148 F-ZTAT, H8S/2147N F-ZTAT, H8S/2144 F-ZTAT, and H8S/2142 F-ZTAT)
Rev. 4.00 Sep 27, 2006 page 667 of 1130
Program
Yes
REJ09B0327-0400
Functions
Erase
Yes
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