DF2148RTE20IV Renesas Electronics America, DF2148RTE20IV Datasheet - Page 158

MCU 5V 128K I-TEMP,PB-FREE, 100-

DF2148RTE20IV

Manufacturer Part Number
DF2148RTE20IV
Description
MCU 5V 128K I-TEMP,PB-FREE, 100-
Manufacturer
Renesas Electronics America
Series
H8® H8S/2100r
Datasheets

Specifications of DF2148RTE20IV

Core Processor
H8S/2000
Core Size
16-Bit
Speed
20MHz
Connectivity
Host Interface, I²C, IrDA, SCI
Peripherals
POR, PWM, WDT
Number Of I /o
74
Program Memory Size
128KB (128K x 8)
Program Memory Type
FLASH
Ram Size
4K x 8
Voltage - Supply (vcc/vdd)
4 V ~ 5.5 V
Data Converters
A/D 8x10b; D/A 2x8b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
100-TQFP, 100-VQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Section 4 Exception Handling
4.6
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 SP to an odd value may lead to a malfunction. Figure 4.6 shows an example of what
happens when the SP value is odd.
Rev. 4.00 Sep 27, 2006 page 112 of 1130
REJ09B0327-0400
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
SP
PUSH.W
PUSH.L
POP.W
POP.L
Stack pointer
Program counter
mode.
Notes on Use of the Stack
SP set to H'FFEFFF
Rn
ERn
Rn
ERn
TRAP instruction executed
Figure 4.6 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
SP
Contents of CCR lost
R1L
PC
H'FFEFFA
H'FFEFFB
H'FFEFFC
H'FFEFFD
H'FFEFFF

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