HD6417144F50V Renesas Electronics America, HD6417144F50V Datasheet - Page 719
![IC SUPERH MCU ROMLESS 112QFP](/photos/12/40/124045/hd6417144f50v_sml.jpg)
HD6417144F50V
Manufacturer Part Number
HD6417144F50V
Description
IC SUPERH MCU ROMLESS 112QFP
Manufacturer
Renesas Electronics America
Series
SuperH® SH7144r
Datasheet
1.HD64F7144F50V.pdf
(932 pages)
Specifications of HD6417144F50V
Core Processor
SH-2
Core Size
32-Bit
Speed
50MHz
Connectivity
EBI/EMI, I²C, SCI
Peripherals
DMA, POR, PWM, WDT
Number Of I /o
74
Program Memory Type
ROMless
Ram Size
8K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 3.6 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
112-QFP
For Use With
HS0005KCU11H - EMULATOR E10A-USB H8S(X),SH2(A)EDK7145 - DEV EVALUATION KIT SH7145
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Program Memory Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
HD6417144F50V
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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19.6.2
On-board programming/erasing of an individual flash memory block can also be performed in user
program mode by branching to a user program/erase control program. The user must set branching
conditions and provide on-board means of supplying programming data. The flash memory must
contain the user program/erase control program or a program that provides the user program/erase
control program from external memory. As the flash memory itself cannot be read during
programming/erasing, transfer the user program/erase control program to on-chip RAM or
external memory, and execute it. Figure 19.6 shows a sample procedure for programming/erasing
in user program mode. Prepare a user program/erase control program in accordance with the
description in section 19.8, Flash Memory Programming/Erasing.
Note: * Do not constantly apply a low level to the FWP pin. Only apply a low level to the FWP pin when
Figure 19.6 Programming/Erasing Flowchart Example in User Program Mode
Programming/Erasing in User Program Mode
programming or erasing the flash memory. To prevent excessive programming or excessive erasing,
while a low level is being applied to the FWP pin, activate the watchdog timer in case of handling CPU
runaways.
Execute user program/erase control
program (flash memory rewrite)
Branch to user program/erase
Transfer user program/erase
control program to RAM
control program in RAM
Branch to flash memory
application program
Program/erase?
FWP = low*
FWP = high
Reset-start
Yes
No
Rev.4.00 Mar. 27, 2008 Page 673 of 882
Branch to flash memory
application program
19. Flash Memory (F-ZTAT Version)
REJ09B0108-0400
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