DF2148ATE20 Renesas Electronics America, DF2148ATE20 Datasheet - Page 129

• Manufacturer Part Number: DF2148ATE20
• Description: IC H8S MCU FLASH 128K 100-QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2100r

Specifications of DF2148ATE20

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: Host Interface, I²C, IrDA, SCI
• Peripherals: POR, PWM, WDT
• Number Of I /o: 74
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 4 V ~ 5.5 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: -
• Other names: HD64F2148ATE20; HD64F2148ATE20

3.1
3.1.1
This LSI has three operating modes (modes 1 to 3). These modes enable selection of the CPU
operating mode and enabling/disabling of on-chip ROM, by setting the mode pins (MD1 and
MD0).
Table 3.1 lists the MCU operating modes.
Table 3.1
MCU
Operating
Mode
0
1
2
3
The CPU’s architecture allows for 4 Gbytes of address space, but this LSI actually access a
maximum of 16 Mbytes.
Mode 1 is an externally expanded mode that allows access to external memory and peripheral
devices. With modes 2 and 3, operation begins in single-chip mode after reset release, but a
transition can be made to external expansion mode by setting the EXPE bit in MDCR.
This LSI can only be used in modes 1 to 3. These means that the mode pins must select one of
these modes. Do not changes the inputs at the mode pins during operation.
Operating Mode Selection
Overview
MCU Operating Mode Selection
MD1
0
1
MD0
0
1
0
1
Section 3 MCU Operating Modes
CPU
Operating
Mode
—
Normal
Advanced
Normal
Description
—
Expanded mode with on-chip ROM disabled
Expanded mode with on-chip ROM enabled
Single-chip mode
Expanded mode with on-chip ROM enabled
Single-chip mode
Rev. 4.00 Sep 27, 2006 page 83 of 1130
Section 3 MCU Operating Modes
REJ09B0327-0400
On-Chip
ROM
—
Disabled
Enabled