DF3048BVX25V Renesas Electronics America, DF3048BVX25V Datasheet - Page 619

• 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: -

register has been modified. Normal execution of an access immediately after register modification
is not guaranteed.
Bits 7 to 4—Reserved: These bits always read 1. Writing is disabled.
Bit 3—RAM Select (RAMS): Specifies selection or non-selection of flash memory emulation in
RAM. When RAMS = 1, all flash memory block are program/erase-protected.
Bit 3: RAMS
0
1
Bits 2 and 1—RAM2 and RAM1: These bits are used with bit 3 to reassign an area to RAM (see
table 18.5).
Bit 0—Reserved: This bit is readable/writable.
Table 18.5 RAM Area Setting
RAM Area
H'FFF000–H'FFF3FF
H'000000–H'0003FF
H'000400–H'0007FF
H'000800–H'000BFF
H'000C00–H'000FFF
Section 18 ROM (H8/3048F-ONE: Single Power Supply, H8/3048B Mask ROM Version)
Description
Emulation not selected
Program/erase-protection of all flash memory blocks is disabled
Emulation selected
Program/erase-protection of all flash memory blocks is enabled
Bit 3
RAMS
0
1
1
1
1
Bit 2
RAM2
0/1
0
0
1
1
Bit 1
RAM1
0/1
0
1
0
1
Rev. 3.00 Sep 27, 2006 page 591 of 872
No emulation
Mapping RAM
RAM Emulation Status
REJ09B0325-0300
(Initial value)