DF3048BVX25V Renesas Electronics America, DF3048BVX25V Datasheet - Page 609
DF3048BVX25V
Manufacturer Part Number
DF3048BVX25V
Description
MCU 3/5V 128K PB-FREE 100-TQFP
Manufacturer
Renesas Electronics America
Series
H8® H8/300Hr
Specifications of DF3048BVX25V
Core Processor
H8/300H
Core Size
16-Bit
Speed
25MHz
Connectivity
SCI, SmartCard
Peripherals
DMA, PWM, WDT
Number Of I /o
70
Program Memory Size
128KB (128K x 8)
Program Memory Type
FLASH
Ram Size
4K x 8
Voltage - Supply (vcc/vdd)
3 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
Lead free / RoHS Compliant
Eeprom Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
DF3048BVX25V
Manufacturer:
Renesas Electronics America
Quantity:
10 000
- Current page: 609 of 903
- Download datasheet (5Mb)
Section 18 ROM (H8/3048F-ONE: Single Power Supply, H8/3048B Mask ROM Version)
18.2.4
Flash Memory Emulation in RAM
In the H8/3048F-ONE, flash memory programming can be emulated in real time by overlapping
the flash memory with part of RAM (“overlap RAM”). When the emulation block set in RAMCR
is accessed while the emulation function is being executed, data written in the overlap RAM is
read. Emulation should be performed in user mode or user program mode.
SCI
Flash memory
RAM
Emulation block
Overlap RAM
(emulation is performed
on data written in RAM)
Application program
Execution state
Figure 18.3 Reading Overlap RAM Data in User Mode or User Program Mode
When overlap RAM data is confirmed, clear the RAMS bit to release RAM overlap, and actually
perform writes to the flash memory.
When the programming control program is transferred to RAM in on-board programming mode,
ensure that the transfer destination and the overlap RAM do not overlap, as this will cause data in
the overlap RAM to be rewritten.
Rev. 3.00 Sep 27, 2006 page 581 of 872
REJ09B0325-0300
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