DF71251AD50FPV Renesas Electronics America, DF71251AD50FPV Datasheet - Page 95

• 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: -

5.1.3
Before exception handling starts, the exception handling vector table must be set in memory. The
exception handling vector table stores the start addresses of exception handling routines. (The
reset exception handling table holds the initial values of PC and SP.)
All exception sources are given different vector numbers and vector table address offsets. The
vector table addresses are calculated from these vector numbers and vector table address offsets.
During exception handling, the start addresses of the exception handling routines are fetched from
the exception handling vector table that is indicated by this vector table address.
Table 5.3 shows the vector numbers and vector table address offsets. Table 5.4 shows how vector
table addresses are calculated.
Table 5.3
Exception Handling Source
Power-on reset
Manual reset
General illegal instruction
(Reserved for system use)
Illegal slot instruction
(Reserved for system use)
CPU address error
(Reserved for system use)
Interrupt
(Reserved for system use)
Trap instruction (user vector)
Exception Handling Vector Table
Vector Numbers and Vector Table Address Offsets
PC
SP
PC
SP
NMI
User break*
1
2
4
5
6
7
8
10
12
13
31
32
63
Vector Number
0
1
3
9
11
:
:
Vector Table Address Offset
H'00000000 to H'00000003
H'00000004 to H'00000007
H'00000008 to H'0000000B
H'0000000C to H'0000000F
H'00000010 to H'00000013
H'00000014 to H'00000017
H'00000018 to H'0000001B
H'0000001C to H'0000001F
H'00000020 to H'00000023
H'00000024 to H'00000027
H'00000028 to H'0000002B
H'0000002C to H'0000002F
H'00000030 to H'00000033
H'00000034 to H'00000037
H'0000007C to H'0000007F
H'00000080 to H'00000083
H'000000FC to H'000000FF
Rev. 5.00 Mar. 06, 2009 Page 75 of 770
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REJ09B0243-0500