HD64F2145BTE20 Renesas Electronics America, HD64F2145BTE20 Datasheet - Page 143
HD64F2145BTE20
Manufacturer Part Number
HD64F2145BTE20
Description
IC H8S MCU FLASH 256K 100-QFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2100r
Specifications of HD64F2145BTE20
Core Processor
H8S/2000
Core Size
16-Bit
Speed
20MHz
Connectivity
I²C, IrDA, SCI, X-Bus
Peripherals
PWM, WDT
Number Of I /o
74
Program Memory Size
256KB (256K 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
Contains lead / RoHS non-compliant
Eeprom Size
-
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4.7
When accessing word data or longword data, this LSI assumes that the lowest address bit is 0. The
stack should always be accessed in words or longwords, 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 4.3 shows an example of what
happens when the SP value is odd.
PUSH.W
PUSH.L
POP.W
POP.L
SP
Usage Note
Legend:
CCR:
PC:
R1L:
SP:
Note: This diagram illustrates an example in which the interrupt control mode is 0 in advanced mode.
SP set to H'FFEFFF
Rn
ERn
Rn
ERn
Condition code register
Program counter
General register R1L
Stack pointer
(or MOV.W Rn, @-SP)
(or MOV.L ERn, @-SP)
(or MOV.W @SP+, Rn)
(or MOV.L @SP+, ERn)
TRAPA instruction executed
Figure 4.3 Operation when SP Value Is Odd
SP
Data saved above SP
CCR
PC
MOV.B R1L, @–ER7 executed
Rev. 3.00 Mar 21, 2006 page 87 of 788
SP
Contents of CCR lost
Section 4 Exception Handling
R1L
PC
REJ09B0300-0300
H'FFEFFA
H'FFEFFB
H'FFEFFC
H'FFEFFD
H'FFEFFF
Address
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