DF2505FC26V Renesas Electronics America, DF2505FC26V Datasheet - Page 777
DF2505FC26V
Manufacturer Part Number
DF2505FC26V
Description
IC H8S/2505 MCU FLASH 144QFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2500r
Specifications of DF2505FC26V
Core Processor
H8S/2000
Core Size
16-Bit
Speed
26MHz
Connectivity
I²C, SCI
Peripherals
POR, PWM, WDT
Number Of I /o
104
Program Memory Size
384KB (384K x 8)
Program Memory Type
FLASH
Ram Size
32K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 5.5 V
Data Converters
A/D 16x10b; D/A 2x8b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
144-QFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
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20.6
To provide real-time emulation in RAM of data that is to be written to the flash memory, a part of
the RAM can be overlapped on an area of flash memory (user MAT) that has been specified by
the RAM emulation register (RAMER). The RAM is accessible in both the user MAT area
specified by RAMER and as the RAM area that has been overlapped on the user MAT area. Such
emulation is possible in both user mode and user-program mode.
Figures 20.17 and 20.18 show an example of the emulation of real-time programming of the user
MAT area.
Flash Memory Emulation in RAM
Figure 20.17 Emulation of Flash Memory in RAM
No
Execute application program
Start of emulation program
End of emulation program
Write the data for tuning to
the overlapped RAM area
Program the user MAT
with the emulated block
Cancel RAMER setting
Tuning OK?
Set RAMER
Yes
Rev. 6.00 Sep. 24, 2009 Page 729 of 928
Section 20 Flash Memory
REJ09B0099-0600
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