D12312SVF20V Renesas Electronics America, D12312SVF20V Datasheet - Page 767
D12312SVF20V
Manufacturer Part Number
D12312SVF20V
Description
IC H8S/2312S MCU ROMLESS 100QFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2300r
Specifications of D12312SVF20V
Core Processor
H8S/2000
Core Size
16-Bit
Speed
20MHz
Connectivity
SCI, SmartCard
Peripherals
POR, PWM, WDT
Number Of I /o
70
Program Memory Type
ROMless
Ram Size
8K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 3.6 V
Data Converters
A/D 8x10b; D/A 2x8b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
100-QFP
For Use With
EDK2329 - DEV EVALUATION KIT H8S/2329
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:
D12312SVF20V
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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[6] After erasure finishes, clear FKEY and specify software protection.
Erasing and Programming Procedure in User Program Mode: By changing the on-chip RAM
address of the download destination in FTDAR, the erasing program and programming program
can be downloaded to separate on-chip RAM areas.
Figure 17.72 shows an example of repetitively executing RAM emulation, erasing, and
programming.
In the above example, the erasing program and programming program are downloaded to areas
excluding the 4 kbytes (H'FFDC00 to H'FFEC00) from H'FFDC00.
Figure 17.72 Sample Procedure of Repeating RAM Emulation, Erasing, and Programming
If this LSI is restarted by a power-on reset immediately after user MAT erasure has finished,
secure a reset period (period of RES = 0) that is at least as long as normal 100 μs.
Download erasing program
Start procedure program
Initialize erasing program
Download programming
(Specify H'FFCC00 as
(Specify H'FFBC00 as
Initialize programming
download destination)
download destination)
Set FTDAR to H'00
Set FTDAR to H'01
program
program
1
(Overview)
Rev.7.00 Feb. 14, 2007 page 733 of 1108
Set FMPDR to H'FFDC00 to
Enter RAM emulation mode
Cancel RAM emulation mode
(execute erasing program)
End procedure program
(execute programming
program relevant block
Erase relevant block
Confirm operation
in on-chip RAM
and tune data
program)
End ?
1
Yes
REJ09B0089-0700
Section 17 ROM
No
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