D12312SVF20V Renesas Electronics America, D12312SVF20V Datasheet - Page 141
D12312SVF20V
Manufacturer Part Number
D12312SVF20V
Description
IC H8S/2312S MCU ROMLESS 100QFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2300r
Specifications of D12312SVF20V
Core Processor
H8S/2000
Core Size
16-Bit
Speed
20MHz
Connectivity
SCI, SmartCard
Peripherals
POR, PWM, WDT
Number Of I /o
70
Program Memory Type
ROMless
Ram Size
8K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 3.6 V
Data Converters
A/D 8x10b; D/A 2x8b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
100-QFP
For Use With
EDK2329 - DEV EVALUATION KIT H8S/2329
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Program Memory Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
D12312SVF20V
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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4.7
When accessing word data or longword data, the chip 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 SP to an odd value may lead to a malfunction. Figure 4.5 shows an example of what
happens when the SP value is odd.
Legend:
CCR: Condition code register
PC:
R1L: General register R1L
SP:
Note: This diagram illustrates an example in which the interrupt control mode is 0, in advanced
PUSH.W
PUSH.L
POP.W
POP.L
SP
Stack pointer
Program counter
Notes on Use of the Stack
mode.
SP set to H'FFFEFF
Rn
ERn
Rn
ERn
TRAP instruction executed
Figure 4.5 Operation when SP Value is Odd
(or MOV.W Rn, @-SP)
(or MOV.L ERn, @-SP)
(or MOV.W @SP+, Rn)
(or MOV.L @SP+, ERn)
SP
Data saved above SP
CCR
PC
MOV.B R1L, @−ER7
Rev.7.00 Feb. 14, 2007 page 107 of 1108
SP
Contents of CCR lost
Section 4 Exception Handling
R1L
PC
REJ09B0089-0700
H'FFFEFA
H'FFFEFB
H'FFFEFC
H'FFFEFD
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