DF2437FV Renesas Electronics America, DF2437FV Datasheet - Page 607

• 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: -

(2) Programming/Erasing Initialization
The on-chip programming/erasing program to be downloaded includes the initialization program.
The specified period pulse must be applied when programming or erasing. The specified pulse
width is made by the method in which wait loop is configured by the CPU instruction. The
operating frequency of the CPU must be set.
The initialization program is set as a parameter of the programming/erasing program which has
downloaded these settings.
Bit
7 to 3
2
1
0
SS
Bit Name
⎯
FK
SF
Initial
Value
⎯
⎯
⎯
⎯
R/W
⎯
R/W
R/W
R/W
Description
Unused
Return 0.
Source Select Error Detect
Only one type of the on-chip program which can be
downloaded can be specified. When more than two
types of programs are selected, the program is not
selected, or the program is selected without being
mapped, an error occurs.
0: Download program can be selected normally
1: Download error occurred (multiple selection or
Flash Key Register Error Detect
Returns the check result whether the value of FKEY is
set to H'A5.
0: FKEY setting is normal (FKEY = H'A5)
1: Setting value of FKEY becomes error (FKEY = value
Success/Fail
Returns the result whether download is ended normally
or not. The determination result whether program that is
downloaded to the on-chip RAM is read back and then
transferred to the on-chip RAM is returned.
0: Downloading on-chip program is ended normally (no
1: Downloading on-chip program is ended abnormally
program which is not mapped is selected)
other than H'A5)
error)
(error occurs)
Rev.2.00 May. 28, 2009 Page 567 of 732
REJ09B0059-0200