DF2437FV Renesas Electronics America, DF2437FV Datasheet - Page 626
DF2437FV
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
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
DF2437FV
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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(3) Erasing Procedure in User Program Mode
The procedures for download, initialization, and erasing are shown in figure 20.12.
The procedure program must be executed in an area other than the user MAT to be erased.
Especially the part where the SCO bit in FCCS is set to 1 for downloading must be executed in the
on-chip RAM.
The area that can be executed in each step of the user procedure program (on-chip RAM, user
MAT, and external space) is shown in section 20.4.4, Storable Area for Procedure Program and
Program Data.
For the area of the on-chip program to be downloaded, see the RAM map for
programming/erasing in figure 20.10.
Rev.2.00 May. 28, 2009 Page 586 of 732
REJ09B0059-0200
JSR FTDAR setting + 32
Select on-chip program
to be downloaded and
destination by FTDAR
Start erasing procedure
Set SCO to 1 and
specify download
execute download
Set FKEY to H'A5
Set the FPEFEQ
Clear FKEY to 0
Initialization
FPFR = 0 ?
DPFR
parameter
program
1
Yes
Yes
=
0?
Initialization error processing
Download error processing
No
No
1.
Figure 20.12 Erasing Procedure
No
JSR FTDAR setting + 16
Disable interrupts and
bus master operation
Set FEBS parameter
procedure program
Set FKEY to H'5A
Clear FKEY to 0
other than CPU
Required block
End erasing
FPFR = 0 ?
completed?
erasing is
Erasing
1
Yes
Yes
Clear FKEY and erasing
No
error processing
2.
3.
4.
5.
6.
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