DF2437FV Renesas Electronics America, DF2437FV Datasheet - Page 91

• Manufacturer Part Number: DF2437FV
• Description: IC H8S/2437 MCU FLASH 128QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2400r

Specifications of DF2437FV

• Core Processor: H8S/2600
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: I²C, SCI
• Peripherals: POR, PWM, WDT
• Number Of I /o: 85
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 16x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 128-QFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

3.1
This LSI has four operating modes (modes 1, 3, 5, and 7). These modes are determined by the
mode pin settings (MD2, MD1, and MD0). For normal program execution mode, the mode pins
must be set to mode 7. Do not change the mode pins while in the middle of an operation. Table 3.1
shows the MCU operating mode selection.
Table 3.1
Modes 0, 2, 4, and 6 are not available with this LSI.
After a reset in mode 7, the operation is started in single-chip mode. It is possible to shift to
extended mode when the EXPE bit in MDCR is set to 1.
Modes 1 and 5 are boot modes for flash memory programming/erasing. For details, refer to section
20, Flash Memory (0.18-μm F-ZTAT Version).
Mode 3 is on-chip emulation mode. The JTAG interface is controlled by the on-chip emulator, on-
chip emulation is possible.
MCU Operating
Mode
1
3
5
7
Operating Mode Selection
MCU Operating Mode Selection
MD2 MD1 MD0
0
0
1
1
Section 3 MCU Operating Modes
0
1
0
1
1
1
1
1
CPU Operating
Mode
Boot mode
Emulation
User boot mode
Advanced
Description
Flash memory programming/erasing
On-chip emulation mode
Flash memory programming/erasing
Single-chip mode with on-chip ROM
enable extended mode
Rev.2.00 May. 28, 2009 Page 51 of 732
REJ09B0059-0200