HD64F3026X25 Renesas Electronics America, HD64F3026X25 Datasheet - Page 99

• 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: -

3.2
MDCR is an 8-bit read-only register that indicates the current operating mode of the
H8/3024 Group.
Bits 7 and 6—Reserved: These bits can not be modified and are always read as 1.
Bits 5 to 3—Reserved: These bits can not be modified and are always read as 0.
Bits 2 to 0—Mode Select 2 to 0 (MDS2 to MDS0): These bits indicate the logic levels at pins
MD
MDS0 are read-only bits. The mode pin (MD
MDCR is read.
Note: The versions with on-chip flash memory have a boot mode in which flash memory can be
Bit
Initial value
Read/Write
Note: * Determined by pins MD to MD .
2
to MD
programmed. In boot mode, the MDS2 bit value is the inverse of the level at the MD
Mode Control Register (MDCR)
0
(the current operating mode). MDS2 to MDS0 correspond to MD
—
—
7
1
—
—
6
1
2
Reserved bits
—
—
5
0
0
2
to MD
—
—
4
0
0
) levels are latched into these bits when
Rev. 2.00 Sep 20, 2005 page 59 of 800
—
—
3
0
Section 3 MCU Operating Modes
MDS2
Mode select 2 to 0
Bits indicating the current
operating mode
—*
R
2
MDS1
2
REJ09B0260-0200
—*
R
to MD
1
0
. MDS2 to
MDS0
—*
R
0
2
pin.