HD64F3048BF25 Renesas Electronics America, HD64F3048BF25 Datasheet - Page 100

• Manufacturer Part Number: HD64F3048BF25
• Description: IC H8 MCU FLASH 128K 100QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300Hr

Specifications of HD64F3048BF25

• Core Processor: H8/300H
• Core Size: 16-Bit
• Speed: 8MHz
• 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): 4.5 V ~ 5.5 V
• Data Converters: A/D 8x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 100-QFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

Section 3 MCU Operating Modes
Modes 5 and 6 are externally expanded modes that enable access to external memory and
peripheral devices and also enable access to the on-chip ROM. Mode 5 supports a maximum
address space of 1 Mbyte. Mode 6 supports a maximum address space of 16 Mbytes.
Mode 7 is a single-chip mode that operates using the on-chip ROM, RAM, and internal I/O
registers, and makes all I/O ports available. Mode 7 supports a 1-Mbyte address space.
The H8/3048B Group can be used only in modes 1 to 7. The inputs at the mode pins must select
one of these seven modes. The inputs at the mode pins must not be changed during operation.
3.1.2
The H8/3048B Group has a mode control register (MDCR) that indicates the inputs at the mode
pins (MD
Table 3.2
Address *
H'FFF1
H'FFF2
Note:
3.2
MDCR is an 8-bit read-only register that indicates the current operating mode of the H8/3048B
Group.
Rev. 3.00 Sep 27, 2006 page 72 of 872
REJ09B0325-0300
Bit
Initial value
Read/Write
Note:
* The lower 16 bits of the address are indicated.
*
2
Register Configuration
Mode Control Register (MDCR)
to MD
Determined by pins MD to MD .
Registers
Name
Mode control register
System control register
0
), and a system control register (SYSCR). Table 3.2 summarizes these registers.
Reserved bits
7
1
6
1
2
5
0
0
Reserved bits
SYSCR
Abbreviation
MDCR
4
0
3
0
R/W
R
R/W
MDS2
Mode select 2 to 0
Bits indicating the current
operating mode
R
2
*
MDS1
Initial Value
Undetermined
H'0B
R
1
*
MDS0
R
0
*