DF2437FV Renesas Electronics America, DF2437FV Datasheet - Page 663

• 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: -

(7) Command Error
A command error will occur when a command is undefined, the order of commands is incorrect,
or a command is unacceptable. Issuing a clock-mode selection command before a device selection
or an inquiry command after the transition to programming/erasing state command, is an example.
Error Response
• Error response, H'80, (one byte): Command error
• Command, H'xx, (one byte): Received command
(8) Command Order
The order for commands in the inquiry selection state is shown below.
1. A supported device inquiry (H'20) should be made to inquire about the supported devices.
2. The device should be selected from among those described by the returned information and set
3. A clock-mode inquiry (H'21) should be made to inquire about the supported clock modes.
4. The clock mode should be selected from among those described by the returned information
5. After selection of the device and clock mode, inquiries for other required information should
6. A new bit rate should be selected with the new bit-rate selection (H'3F) command, according
7. After selection of the device and clock mode, inquire the information of the user boot MAT
8. After making inquiries and selecting a new bit rate, issue the transition to programming/erasing
with a device-selection (H'10) command.
and set.
be made, such as the multiplication-ratio inquiry (H'22) or operating frequency inquiry (H'23),
which are needed for a new bit-rate selection.
to the returned information on multiplication ratios and operating frequencies.
and user MAT with the user boot MATs information inquiry (H'24), user MATs information
inquiry (H'25), erased block information inquiry (H'26), and programming unit inquiry (H'27).
state command (H'40). The boot program will then enter the programming/erasing state.
H'80
H'xx
Rev.2.00 May. 28, 2009 Page 623 of 732
REJ09B0059-0200