HD64F3026X25 Renesas Electronics America, HD64F3026X25 Datasheet - Page 526

• Manufacturer Part Number: HD64F3026X25
• Description: MCU 3V 256K 100-TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300Hr

Specifications of HD64F3026X25

• Core Processor: H8/300H
• Core Size: 16-Bit
• Speed: 25MHz
• Connectivity: SCI, SmartCard
• Peripherals: PWM, WDT
• Number Of I /o: 70
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 8K 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: Contains lead / RoHS non-compliant
• Eeprom Size: -

Section 17 Flash Memory [H8/3026F-ZTAT Version]
Bit 3—RAM Select (RAMS): Specifies selection or non-selection of flash memory emulation in
RAM. When RAMS = 1, all flash memory blocks are program/erase-protected.
Bit 3
RAMS
0
1
Bits 2 to 0—Flash Memory Area Selection (RAM2 to RAM0): These bits are used together
with bit 3 to select the flash memory area to be overlapped with RAM. (See table 17.5.)
Table 17.5 Flash Memory Area Divisions
*: Don’t care
Note: Flash memory emulation by RAM is not supported in mode 6 (single-chip normal mode);
Rev. 2.00 Sep 20, 2005 page 486 of 800
REJ09B0260-0200
RAM Area
H'FFE000 to H'FFEFFF
H'000000 to H'000FFF
H'001000 to H'001FFF
H'002000 to H'002FFF
H'003000 to H'003FFF
H'004000 to H'004FFF
H'005000 to H'005FFF
H'006000 to H'006FFF
H'007000 to H'007FFF
therefore, although these bits can be written, they should not be set to 1.
When performing flash memory emulation by RAM, the RAME bit in SYSCR must be set to
1.
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
4-kbyte RAM area
EB0 (4 kbytes)
EB1 (4 kbytes)
EB2 (4 kbytes)
EB3 (4 kbytes)
EB4 (4 kbytes)
EB5 (4 kbytes)
EB6 (4 kbytes)
EB7 (4 kbytes)
Block Name
RAMS
0
1
1
1
1
1
1
1
1
RAM2
*
0
0
0
0
1
1
1
1
RAM1
*
0
0
1
1
0
0
1
1
(Initial value)
RAM0
*
0
1
0
1
0
1
0
1