DF2398F20 Renesas Electronics America, DF2398F20 Datasheet - Page 117

• Manufacturer Part Number: DF2398F20
• Description: IC H8S MCU FLASH 256K 128QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2300r

Specifications of DF2398F20

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: SCI, SmartCard
• Peripherals: DMA, POR, PWM, WDT
• Number Of I /o: 87
• 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: 128-QFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Other names: HD64F2398F20; HD64F2398F20

2.2.27 (1)
DIVXS (DIVide eXtend as Signed)
Operation
Rd
Assembly-Language Format
DIVXS.B Rs, Rd
Operand Size
Byte
Description
This instruction divides the contents of a 16-bit register Rd (destination operand) by the contents
of an 8-bit register Rs (source operand) and stores the result in the 16-bit register Rd. The division
is signed. The operation performed is 16 bits
quotient is placed in the lower 8 bits of Rd. The remainder is placed in the upper 8 bits of Rd. The
sign of the remainder matches the sign of the dividend.
Valid results are not assured if division by zero is attempted or an overflow occurs.
Available Registers
Rd: R0 to R7, E0 to E7
Rs: R0L to R7L, R0H to R7H
Rs
Rd
DIVXS (B)
Dividend
16 bits
Rd
Divisor
8 bits
Rs
8 bits
Condition Code
H: Previous value remains unchanged.
N: Set to 1 if the quotient is negative;
Z: Set to 1 if the divisor is zero; otherwise
V: Previous value remains unchanged.
C: Previous value remains unchanged.
otherwise cleared to 0.
cleared to 0.
8-bit quotient and 8-bit remainder. The
Remainder
Rev. 4.00 Feb 24, 2006 page 101 of 322
—
I
8 bits
UI H
—
Section 2 Instruction Descriptions
—
Rd
Quotient
—
U
8 bits
N
REJ09B0139-0400
Z
Divide Signed
— —
V
C