DF2437FV Renesas Electronics America, DF2437FV Datasheet - Page 662

• 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: -

(6) Transition of Programming/Erasing State
The boot program will transfer the erasing program, and erase the user MATs and user boot MATs
in that order. On completion of this erasure, ACK will be returned and the programming/erasing
state will be entered.
The host should select the device code, clock mode, and new bit rate with device selection, clock-
mode selection, and new bit-rate selection commands, and then send the command for the
transition to programming/erasing state to the boot program. These procedures should be carried
out before sending of the programming selection command or program data.
Command
• Command, H'40, (one byte): Transition to programming/erasing state
Response
• Response, H'06, (one byte): Response to transition to programming/erasing state
Error Response
• Error response, H'C0, (one byte): Error response for user boot MAT blank check
• Error code, H'51, (one byte): Erasing error
Rev.2.00 May. 28, 2009 Page 622 of 732
REJ09B0059-0200
ACK will be returned when the user MAT and user boot MAT have been erased by the
transferred erasing program.
An error occurred and erasure was not completed.
H'40
H'06
Waiting for one-bit period
Setting a new bit rate
at the specified bit rate
H'C0
Host
Figure 20.22 New Bit-Rate Selection Sequence
H'51
H'06 (ACK) with the new bit rate
H'06 (ACK) with the new bit rate
Setting a new bit rate
H'06 (ACK)
Setting a new bit rate
Boot program