DF3048X16V Renesas Electronics America, DF3048X16V Datasheet - Page 113

• 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: -

4.2.3
If an interrupt is accepted after a reset but before the stack pointer (SP) is initialized, PC and CCR
will not be saved correctly, leading to a program crash. To prevent this, all interrupt requests,
including NMI, are disabled immediately after a reset. The first instruction of the program is
always executed immediately after the reset state ends. This instruction should initialize the stack
pointer (example: MOV.L #xx:32, SP).
RES
Internal
address bus
Internal
read signal
Internal
write signal
Internal
data bus
(16 bits wide)
Interrupts after Reset
(1), (3)
(2), (4)
(5)
(6)
Address of reset vector ((1) = H'000000, (2) = H'000002)
Start address (contents of reset vector)
Start address
First instruction of program
Figure 4.4 Reset Sequence (Modes 5, 6, and 7)
(1)
(2)
Vector fetch
(4)
Rev. 7.00 Sep 21, 2005 page 87 of 878
(3)
Internal
processing
Section 4 Exception Handling
Prefetch of
first program
instruction
(6)
(5)
REJ09B0259-0700