DF3048X16V Renesas Electronics America, DF3048X16V Datasheet - Page 629

• Manufacturer Part Number: DF3048X16V
• Description: MCU 5V 128K,PB-FREE 100-TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300Hr

Specifications of DF3048X16V

• Core Processor: H8/300H
• Core Size: 16-Bit
• Speed: 16MHz
• Connectivity: SCI, SmartCard
• Peripherals: DMA, PWM, WDT
• Number Of I /o: 70
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 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: Lead free / RoHS Compliant
• Eeprom Size: -

User Program Mode Execution Procedure: Figure 19.7 shows the procedure for user program
mode execution in RAM.
Note: To prevent microcontroller errors caused by accidental programming or erasing, apply 12 V to
1
2
3
4
5
V
by RAM; do not apply 12 V to the V
watchdog timer should be running and enabled to halt runaway program execution, so that
program runaway will not lead to overprogramming or overerasing. For further information
about turning V
Precautions (Dual-Power Supply).
Set MD
PP
Execute user application program
Store user application programs
only when the flash memory is programmed or erased, or when flash memory is emulated
Transfer on-board update
Execute on-board update
Update flash memory
Apply 0 to 5 V to MD
2
(user program mode)
program into RAM
to MD
program in RAM
Wait 5 to 10 µs
Figure 19.7 User Program Mode Operation (Example)
Set V
V
PP
0
PP
= 12 V
to 101, 110, or 111
PP
on and off, see section 19.8, Flash Memory Programming and Erasing
Section 19 Flash Memory (H8/3048F: Dual Power Supply (V
E bit
2
PP
pin during normal operation. While 12 V is applied, the
Procedure
1. The user stores application programs in flash
2. Pin inputs are set up for user program mode.
3. A reset starts the CPU, which transfers the
4. Following a branch to the program in RAM,
5. After the on-board update ends, clear the
memory. One of these is an on-board
update program that will execute steps 3 to 5
below.
on-board update program into RAM.
the on-board update program is executed.
V
memory.
Wait 5 to 10 s to stabilize internal power
supply.
Update program is executed.
V
updated user application program and this
program is executed.
After clearing the V
memory program executes, flash memory
read setup time (t
PP
PP
Rev. 7.00 Sep 21, 2005 page 603 of 878
E bit in FLMCR is set to update flash
E bit then a branch is made to the
FRS
PP
) is needed.
E bit, before the flash
REJ09B0259-0700
PP
= 12 V))