HD64F3687GFPV Renesas Electronics America, HD64F3687GFPV Datasheet - Page 94

• 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: -

Section 2 Instruction Descriptions
2.2.24 DAS
DAS (Decimal Adjust Subtract)
Operation
Rd (decimal adjust)
Assembly-Language Format
DAS Rd
Operand Size
Byte
Description
Given that the result of a subtraction operation performed by a SUB.B, SUBX.B, or NEG.B
instruction on 4-bit BCD data is contained in an 8-bit register Rd (destination register) and the
carry and half-carry flags, the DAS instruction adjusts the general register contents by adding
H'00, H'FA, H'A0, or H'9A according to the table below.
Available Registers
Rd: R0L to R7L, R0H to R7H
Rev. 3.00 Dec 13, 2004 page 78 of 258
REJ09B0213-0300
Adjustment
C Flag
before
0
0
1
1
Upper 4 Bits
Adjustment
before
0 to 9
0 to 8
7 to F
6 to F
Rd
Adjustment
H Flag
before
0
1
0
1
Lower 4 Bits
Adjustment
Condition Code
H: Undetermined (no guaranteed value).
N: Set to 1 if the adjusted result is negative;
Z: Set to 1 if the adjusted result is zero;
V: Undetermined (no guaranteed value).
C: Previous value remains unchanged.
before
0 to 9
6 to F
0 to 9
6 to F
otherwise cleared to 0.
otherwise cleared to 0.
— —
I
UI
(hexadecimal)
H
*
Value Added
—
U
FA
A0
9A
00
N
Decimal Adjust
Z
Adjustment
V
*
C Flag
after
0
0
1
1
—
C