HD64F3687GFPV Renesas Electronics America, HD64F3687GFPV Datasheet - Page 109
HD64F3687GFPV
Manufacturer Part Number
HD64F3687GFPV
Description
IC H8 MCU FLASH 56K 64LQFP
Manufacturer
Renesas Electronics America
Series
H8® H8/300H Tinyr
Specifications of HD64F3687GFPV
Core Processor
H8/300H
Core Size
16-Bit
Speed
20MHz
Connectivity
I²C, SCI
Peripherals
LVD, POR, PWM, WDT
Number Of I /o
45
Program Memory Size
56KB (56K x 8)
Program Memory Type
FLASH
Ram Size
4K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
64-LQFP
Package
64LQFP
Family Name
H8
Maximum Speed
20 MHz
Operating Supply Voltage
3.3|5 V
Data Bus Width
16|32 Bit
Number Of Programmable I/os
45
Interface Type
I2C/SCI
On-chip Adc
8-chx10-bit
Number Of Timers
3
For Use With
R0K436079S000BE - KIT DEV FOR H8/36079 W/COMPILER
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:
HD64F3687GFPV
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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DIVXU
DIVXU Instruction, Zero Divide, and Overflow
Zero divide and overflow are not detected in the DIVXU instruction. A program like the following
can detect zero divisors and avoid overflow.
1. Programming solutions for DIVXU.B R0L, R1
Example 1: Divide upper 8 bits and lower 8 bits of 16-bit dividend separately and obtain 16-bit
quotient
ZERODIV:
DIVXU (DIVide eXtend as Unsigned)
CMP.B
BEQ
MOV.B
EXTU.W
DIVXU.B
MOV.B
DIVXU.B
MOV.B
MOV.B
RTS
#0, R0L
ZERODIV
R1H,R2L
R2 (*1).
R0L, R2 (*2)
R2H, R1H (*3) ;
R0L, R1 (*4)
R2L, R2H
R1L, R2L (*5) ;
;
;
;
;
;
;
;
;
R0L = 0? (Zero divisor?)
Branch to ZERODIV if R0L = 0
Divide upper 8 bits of dividend
R2H
Divide lower 8 bits of dividend (including repeated
division of upper 8 bits)
Store upper part of quotient in R2H
Store lower part of quotient in R2L
Zero-divide handling routine
Copy upper 8 bits of dividend to R2L and
zero-extend to 16 bits
R1H (store partial remainder in R1H)
Rev. 3.00 Dec 13, 2004 page 93 of 258
Section 2 Instruction Descriptions
REJ09B0213-0300
Divide
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