R5F21256SNFP#U0 Renesas Electronics America, R5F21256SNFP#U0 Datasheet - Page 93

• Manufacturer Part Number: R5F21256SNFP#U0
• Description: IC R8C MCU FLASH 32K 52LQFP
• Manufacturer: Renesas Electronics America
• Series: R8C/2x/25r

Specifications of R5F21256SNFP#U0

• Core Processor: R8C
• Core Size: 16/32-Bit
• Speed: 20MHz
• Connectivity: I²C, LIN, SIO, SSU, UART/USART
• Peripherals: POR, Voltage Detect, WDT
• Number Of I /o: 41
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 2K x 8
• Voltage - Supply (vcc/vdd): 2.2 V ~ 5.5 V
• Data Converters: A/D 12x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 52-LQFP
• For Use With: R0K521256S000BE - KIT EVAL STARTER FOR R8C/25
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

Rev.2.00 Oct 17, 2005
REJ09B0001-0200
EXITD
[ Syntax ]
[ Operation ]
[ Flag Change ]
[ Description Example ]
[ Related Instructions ]
Chapter 3
[ Function ]
Change
EXITD
SP
FB
SP
PC
SP
PC
SP
Flag
• This instruction deallocates a stack frame and exits from the subroutine.
• Use this instruction in combination with the ENTER instruction.
• The diagrams below show the stack area status before and after the EXITD instruction is executed
EXITD
ML
H
at the end of a subroutine in which an ENTER instruction was executed.
SP
FB
U
Before instruction execution
I
Auto variable area
Argument of function
Functions
Return address (M)
Return address (H)
Return address (L)
O
page 73 of 263
M(SP)
FB (H)
FB
M(SP)
SP
SP
M(SP)
SP
FB (L)
B
S
+
+
+
ENTER
2
2
1
Z
EXIT and Deallocate stack frame
D
Direction in which
address increases
Deallocate stack frame
C
SP
After instruction execution
[ Instruction Code/Number of Cycles ]
Argument of function
EXITD
3.2 Functions
Page: 178