D12321VF25V Renesas Electronics America, D12321VF25V Datasheet - Page 857
D12321VF25V
Manufacturer Part Number
D12321VF25V
Description
IC H8S/2300 MCU ROMLESS 128QFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2300r
Datasheets
1.HEWH8E10A.pdf
(19 pages)
2.D12312SVTE25V.pdf
(341 pages)
3.D12322RVF25V.pdf
(1304 pages)
Specifications of D12321VF25V
Core Processor
H8S/2000
Core Size
16-Bit
Speed
25MHz
Connectivity
SCI, SmartCard
Peripherals
POR, PWM, WDT
Number Of I /o
86
Program Memory Type
ROMless
Ram Size
4K 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
128-QFP
For Use With
EDK2329 - DEV EVALUATION KIT H8S/2329
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Program Memory Size
-
Available stocks
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Price
Company:
Part Number:
D12321VF25V
Manufacturer:
Renesas Electronics America
Quantity:
135
Company:
Part Number:
D12321VF25V
Manufacturer:
Renesas
Quantity:
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Company:
Part Number:
D12321VF25V
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Quantity:
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19.18
19.18.1 Emulation in RAM
Making a setting in the RAM emulation register (RAMER) enables part of RAM to be overlapped
onto the flash memory area so that data to be written to flash memory can be emulated in RAM in
real time. After the RAMER setting has been made, accesses can be made from the flash memory
area or the RAM area overlapping flash memory. Emulation can be performed in user mode and
user program mode. Figure 19.44 shows an example of emulation of real-time flash memory
programming.
Flash Memory Emulation in RAM
Figure 19.44 Flowchart for Flash Memory Emulation in RAM
No
Write to flash memory emulation
Execute application program
Write tuning data to overlap
Start of emulation program
End of emulation program
Clear RAMER
Set RAMER
Tuning OK?
RAM
block
Rev.6.00 Sep. 27, 2007 Page 825 of 1268
Yes
REJ09B0220-0600
Section 19 ROM
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