DF2505FC26V Renesas Electronics America, DF2505FC26V Datasheet - Page 130

• Manufacturer Part Number: DF2505FC26V
• Description: IC H8S/2505 MCU FLASH 144QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2500r

Specifications of DF2505FC26V

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 26MHz
• Connectivity: I²C, SCI
• Peripherals: POR, PWM, WDT
• Number Of I /o: 104
• Program Memory Size: 384KB (384K x 8)
• Program Memory Type: FLASH
• Ram Size: 32K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Data Converters: A/D 16x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 144-QFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

Section 4 Exception Handling
4.7
Figures 4.2 shows the stack state after completion of trap instruction exception handling and
interrupt exception handling.
4.8
When accessing word data or longword data, this LSI assumes that the lowest address bit is 0. The
stack should always be accessed by word transfer instruction or longword transfer instruction, and
the value of the stack pointer (SP: ER7) should always be kept even. Use the following
instructions to save registers:
Use the following instructions to restore registers:
Setting the SP to an odd value may lead to a malfunction. Figure 4.3 shows an example of what
happens when the SP value is odd.
Rev. 6.00 Sep. 24, 2009 Page 82 of 928
REJ09B0099-0600
PUSH.W
PUSH.L
POP.W
POP.L
Stack State after Exception Handling
Usage Note
Figure 4.2 Stack State after Exception Handling (Advanced Mode)
Rn
ERn
Rn
ERn
Note:* Ignored on return.
SP
(a) Interrupt control mode 0
(or MOV.W Rn, @-SP)
(or MOV.L ERn, @-SP)
(or MOV.W @SP+, Rn)
(or MOV.L @SP+, ERn)
(24 bits)
CCR
PC
SP
(b) Interrupt control mode 2
Reserved*
(24 bits)
CCR
EXR
PC