DF3048BVX25V Renesas Electronics America, DF3048BVX25V Datasheet - Page 624

• 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: -

Section 18 ROM (H8/3048F-ONE: Single Power Supply, H8/3048B Mask ROM Version)
On-Chip RAM Area Divisions in Boot Mode
In boot mode, the RAM area is divided into an area used by the boot program and an area to which
the programming control program is transferred via the SCI, as shown in figure 18.9. The boot
program area cannot be used until the execution state in boot mode switches to the programming
control program transferred from the host.
Note: The boot program area cannot be used until a transition is made to the execution state for
In boot mode in the H8/3048F-ONE, the contents of the 8-byte ID code area shown below are
checked to determine whether the program is a programming control program compatible with the
H8/3048F-ONE.
If an original programming control program is used in boot mode, the 8-byte ID code shown
above should be added at the beginning of the program.
Rev. 3.00 Sep 27, 2006 page 596 of 872
REJ09B0325-0300
the programming control program transferred to RAM. Note also that the boot program
remains in this area of the on-chip RAM even after control branches to the programming
control program.
H'FFF518 onward
H'FFF510
H'FFEF10
H'FFF50F
H'FFF510
H'FFFF0F
Figure 18.9 RAM Areas in Boot Mode
Programming control program instruction codes
40
(Product ID code)
Boot program area
FE
Programming
program area
control
62
66
33
ID code area
(8 bytes)
30
34
38