DF2437FV Renesas Electronics America, DF2437FV Datasheet - Page 94

• 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: -

3.3
3.3.1
The CPU can access a 16-Mbyte address space in advanced mode. The on-chip ROM is enabled.
The initial mode after a reset is single-chip mode, to use the external address space, set the EXPE
bit in MDCR to 1.
Normal Extended Mode:
After a reset, ports 1 and 2 become input ports.
The address bus can be output when the corresponding port data direction register (DDR) is set to
1. Port 3 is a data bus, part of port 9 and port A become a bus control signal. When the ABWn bit
in BCRAn is cleared to 0, port 6 becomes the data bus. (n = 1 to 3)
Multiplex Extended Mode:
When using an 8-bit bus, regardless of the data direction register (DDR) setting of port 2, it
becomes an address output and data input/output port. Port 1 can be used as a general port.
When using a 16-bit bus, regardless of the data direction register (DDR) setting of port 1 or 2, they
become address output and data input/output ports.
Rev.2.00 May. 28, 2009 Page 54 of 732
REJ09B0059-0200
Operating Mode Descriptions
Mode 7