DF71251AD50FPV Renesas Electronics America, DF71251AD50FPV Datasheet - Page 103
DF71251AD50FPV
Manufacturer Part Number
DF71251AD50FPV
Description
MCU RISC FLASH 32K 8K 64LQFP
Manufacturer
Renesas Electronics America
Series
SuperH® SH Tinyr
Datasheet
1.DF71243N50FPV.pdf
(794 pages)
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
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
DF71251AD50FPV
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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5.5
5.5.1
Exception handling can be triggered by the trap instruction, illegal slot instructions, and general
illegal instructions, as shown in table 5.9.
Table 5.9
Note:
5.5.2
When a TRAPA instruction is executed, the trap instruction exception handling starts. The CPU
operates as follows:
1. The status register (SR) is saved to the stack.
2. The program counter (PC) is saved to the stack. The PC value saved is the start address of the
3. The CPU reads the start address of the exception handling routine from the exception handling
Type
Trap instruction
Illegal slot
instructions*
General illegal
instructions*
instruction to be executed after the TRAPA instruction.
vector table that corresponds to the vector number specified in the TRAPA instruction,
program execution branches to that address, and then the program starts. This branch is not a
delayed branch.
* The operation is not guaranteed when undefined instructions other than H'F000 to
Exceptions Triggered by Instructions
Types of Exceptions Triggered by Instructions
Trap Instructions
H'FFFF are decoded.
Types of Exceptions Triggered by Instructions
Source Instruction
TRAPA
Undefined code placed
immediately after a delayed
branch instruction (delay slot) or
instructions that changes the PC
value
Undefined code anywhere
besides in a delay slot
⎯
Delayed branch instructions: JMP, JSR,
BRA, BSR, RTS, RTE, BF/S, BT/S, BSRF,
BRAF
Instructions that changes the PC value: JMP,
JSR, BRA, BSR, RTS, RTE, BT, BF, TRAPA,
BF/S, BT/S, BSRF, BRAF, LDC Rm,SR,
LDC.L @Rm+,SR
⎯
Comment
Rev. 5.00 Mar. 06, 2009 Page 83 of 770
REJ09B0243-0500
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