DF3052BX25V Renesas Electronics America, DF3052BX25V Datasheet - Page 108
DF3052BX25V
Manufacturer Part Number
DF3052BX25V
Description
MCU 5V 512K 100-TQFP
Manufacturer
Renesas Electronics America
Series
H8® H8/300Hr
Specifications of DF3052BX25V
Core Processor
H8/300H
Core Size
16-Bit
Speed
25MHz
Connectivity
SCI, SmartCard
Peripherals
DMA, POR, PWM, WDT
Number Of I /o
70
Program Memory Size
512KB (512K x 8)
Program Memory Type
FLASH
Ram Size
8K x 8
Voltage - Supply (vcc/vdd)
4.5 V ~ 5.5 V
Data Converters
A/D 8x10b; D/A 2x8b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
100-TQFP, 100-VQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Available stocks
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Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
DF3052BX25V
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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Section 4 Exception Handling
4.6
When accessing word data or longword data, the H8/3052BF regards the lowest address bit as 0.
The stack should always be accessed by word access or longword access, 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 SP to an odd value may lead to a malfunction. Figure 4.7 shows an example of what
happens when the SP value is odd.
Rev. 3.00 Mar 21, 2006 page 78 of 814
REJ09B0302-0300
PUSH.W Rn (or MOV.W Rn, @–SP)
PUSH.L ERn (or MOV.L ERn, @–SP)
POP.W Rn
POP.L ERn
SP
Legend:
CCR:
PC:
R1L:
SP:
Note: The diagram illustrates modes 3 and 4.
Notes on Use of the Stack
Condition code register
Program counter
General register R1L
Stack pointer
SP set to H'FFFEFF
(or MOV.W @SP+, Rn)
(or MOV.L @SP+, ERn)
TRAPA instruction executed
Figure 4.7 Operation when SP Value Is Odd
SP
Data saved above SP
CCR
PC
MOV. B R1L, @-ER7
SP
CCR contents lost
R1L
PC
H'FFFEFA
H'FFFEFB
H'FFFEFC
H'FFFEFD
H'FFFEFF
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