DF71251AD50FPV Renesas Electronics America, DF71251AD50FPV Datasheet - Page 93

• Manufacturer Part Number: DF71251AD50FPV
• Description: MCU RISC FLASH 32K 8K 64LQFP
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH Tinyr

Specifications of DF71251AD50FPV

• Core Processor: SH-2
• Core Size: 32-Bit
• Speed: 50MHz
• Connectivity: SCI
• Peripherals: POR, PWM, WDT
• Number Of I /o: 37
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 4 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

5.1
5.1.1
Exception handling is started by four sources: resets, address errors, interrupts and instructions and
have the priority, as shown in table 5.1. When several exceptions are detected at once, they are
processed according to the priority.
Table 5.1
Notes: 1. Delayed branch instructions: JMP, JSR, BRA, BSR, RTS, RTE, BF/S, BT/S, BSRF, and
Exception
Reset
Interrupt
Address error
Instruction
Address error
Interrupt
2. Instructions that change the PC value: JMP, JSR, BRA, BSR, RTS, RTE, BT, BF,
3. The user break interrupt is not generated on the 32 Kbyte (SH71251A and SH71241A)
Overview
Types of Exception Handling and Priority
BRAF.
TRAPA, BF/S, BT/S, BSRF, BRAF, LDC Rm,SR, LDC.L @Rm+,SR.
and 16 Kbyte (SH71250A and SH71240A) versions.
Types of Exceptions and Priority
Exception Source
Power-on reset
Manual reset
User break (break before instruction execution)*
CPU address error (instruction fetch)
General illegal instructions (undefined code)
Illegal slot instruction (undefined code placed immediately after a
delayed branch instruction*
Trap instruction (TRAPA instruction)
CPU address error (data access)
User break (break after instruction execution or operand break)*
NMI
IRQ
On-chip peripheral modules
Section 5 Exception Handling
1
or instruction that changes the PC value*
Rev. 5.00 Mar. 06, 2009 Page 73 of 770
3
3
REJ09B0243-0500
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)
Priority
High
Low