DF2398TE20 Renesas Electronics America, DF2398TE20 Datasheet - Page 102

• Manufacturer Part Number: DF2398TE20
• Description: IC H8S MCU FLASH 256K 120TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2300r

Specifications of DF2398TE20

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: SCI, SmartCard
• Peripherals: DMA, POR, PWM, WDT
• Number Of I /o: 87
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 8K 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: 120-TQFP, 120-VQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Other names: HD64F2398TE20; HD64F2398TE20

4.1.2
Exceptions originate from various sources. Trap instructions and interrupts are handled as follows:
1. The program counter (PC), condition code register (CCR), and extended register (EXR) are pushed onto the stack.
2. The interrupt mask bits are updated. The T bit is cleared to 0.
3. A vector address corresponding to the exception source is generated, and program execution starts from that address.
For a reset exception, steps 2 and 3 above are carried out.
4.1.3
The exception sources are classified as shown in figure 4-1. Different vector addresses are assigned to different exception
sources.
Table 4-2 lists the exception sources and their vector addresses.
In modes 6 and 7 the on-chip ROM available for use after a power-on reset is the 64-kbyte area comprising addresses
H'000000 to H'00FFFF. Care is required when setting vector addresses. In this case, clearing the EAE bit in BCRL enables
the 128-kbyte (256-kbyte)* area comprising address H'000000 to H'01FFFF (H'03FFFF)* to be used.
Note: * Since these values are different according to the on-chip ROM capacitance, see section 3.5, Memory Map in Each
Rev.6.00 Oct.28.2004 page 72 of 1016
REJ09B0138-0600H
Operating Mode.
Exception Handling Operation
Exception Vector Table
Note: * Manual reset is only supported in the H8S/2357 ZTAT.
Exception
sources
Figure 4-1 Exception Sources
Reset
Trace
Interrupts
Trap instruction
Power-on reset
Manual reset*
External interrupts: NMI, IRQ7 to IRQ0
Internal interrupts: 52 interrupt sources in
on-chip supporting modules