D12312SVTEBL25 Renesas Electronics America, D12312SVTEBL25 Datasheet - Page 767

• Manufacturer Part Number: D12312SVTEBL25
• Description: IC H8S MCU ROMLESS 100-QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2300r

Specifications of D12312SVTEBL25

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 25MHz
• 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-TQFP, 100-VQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Program Memory Size: -
• Other names: HD6412312SVTEBL25; HD6412312SVTEBL25

[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