D12312SVF20V Renesas Electronics America, D12312SVF20V Datasheet - Page 134

• 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: -

Section 4 Exception Handling
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 extend register (EXR) are
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
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 256-kbyte (128 kbytes/384 kbytes/512 kbytes)
area * comprising addresses H'000000 to H'03FFFF (to H'01FFFF/H'05FFFF/H'07FFFF) to be
used.
Note: * The different have different amounts of on-chip ROM. For details, see section 6.2.5, Bus
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REJ09B0089-0700
pushed onto the stack.
starts from that address.
Control Register L (BCRL).
Exception Handling Operation
Exception Vector Table
Exception
sources
• Reset
• Trace
• Interrupts
• Trap instruction
Figure 4.1 Exception Sources
External interrupts: NMI, IRQ7 to IRQ0
Internal interrupts: interrupts from on-chip
supporting modules