HD64F2638F20J Renesas Electronics America, HD64F2638F20J Datasheet - Page 153
HD64F2638F20J
Manufacturer Part Number
HD64F2638F20J
Description
IC H8S MCU FLASH 256K 128-QFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2600r
Specifications of HD64F2638F20J
Core Processor
H8S/2600
Core Size
16-Bit
Speed
20MHz
Connectivity
CAN, SCI, SmartCard
Peripherals
Motor Control PWM, POR, PWM, WDT
Number Of I /o
72
Program Memory Size
256KB (256K x 8)
Program Memory Type
FLASH
Ram Size
16K x 8
Voltage - Supply (vcc/vdd)
4.5 V ~ 5.5 V
Data Converters
A/D 12x10b; D/A 2x8b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
128-QFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Available stocks
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Manufacturer
Quantity
Price
Company:
Part Number:
HD64F2638F20J
Manufacturer:
PENESAS
Quantity:
252
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H8S/2639, H8S/2638, H8S/2636,
H8S/2630, H8S/2635 Group
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 4-6 shows an example of what
happens when the SP value is odd.
REJ09B0103-0800 Rev. 8.00
May 28, 2010
PUSH.W
PUSH.L
POP.W
POP.L
SP
Notes on Use of the Stack
Note: This diagram illustrates an example in which the interrupt control mode
Legend:
SP set to H'FFFEFF
Rn
ERn
Rn
ERn
is 0, in advanced mode.
TRAPA instruction executed
CCR: Condition code register
PC:
R1L: General register R1L
SP:
(or MOV.W Rn, @-SP)
(or MOV.L ERn, @-SP)
(or MOV.W @SP+, Rn)
(or MOV.L @SP+, ERn)
Figure 4-6 Operation when SP Value Is Odd
Stack pointer
Program counter
SP
Data saved above SP
CCR
PC
MOV.B R1L, @−ER7
SP
Contents of CCR lost
R1L
PC
Section 4 Exception Handling
H'FFFEFA
H'FFFEFB
H'FFFEFC
H'FFFEFD
H'FFFEFE
H'FFFEFF
Page 103 of 1458
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