DF2268FA13 Renesas Electronics America, DF2268FA13 Datasheet - Page 147
DF2268FA13
Manufacturer Part Number
DF2268FA13
Description
IC H8S MCU FLASH 256K 100QFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2200r
Specifications of DF2268FA13
Core Processor
H8S/2000
Core Size
16-Bit
Speed
13MHz
Connectivity
I²C, SCI, SmartCard
Peripherals
LCD, POR, PWM, WDT
Number Of I /o
67
Program Memory Size
256KB (256K x 8)
Program Memory Type
FLASH
Ram Size
16K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 5.5 V
Data Converters
A/D 10x10b, D/A 2x8b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
100-QFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Other names
HD64F2268FA13
HD64F2268FA13
HD64F2268FA13
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Manufacturer
Quantity
Price
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Part Number:
DF2268FA13V
Manufacturer:
Renesas Electronics America
Quantity:
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2.2.38
MAC (Multiply and ACcumulate)
Operation
(EAn)
MAC register
ERn
ERm + 2
Assembly-Language Format
MAC @ERn+, @ERm+
Operand Size
—
Description
This instruction performs signed multiplication on two 16-bit operands at addresses given by the
contents of general registers ERn and ERm, adds the 32-bit product to the contents of the MAC
register, and stores the sum in the MAC register. After this operation, ERn and ERm are both
incremented by 2.
The operation can be carried out in saturating or non-saturating mode, depending on the MACS
bit in a system control register. (SYSCR)
See the relevant hardware manual for further information.
In non-saturating mode, MACH and MACL are concatenated to store a 42-bit result. The value of
bit 41 is copied into the upper 22 bits of MACH as a sign extension.
In saturating mode, only MACL is valid, and the result is limited to the range from H'80000000
(minimum value) to H'7FFFFFFF (maximum value). If the result overflows in the negative
direction, H'80000000 (the minimum value) is stored in MACL. If the result overflows in the
positive direction, H'7FFFFFFF (the maximum value) is stored in MACL. The LSB of the MACH
register indicates the status of the overflow flag (V-MULT) in the multiplier. Other bits retain
their previous contents.
This instruction is supported only by the H8S/2600 CPU.
+ 2
(EAm) + MAC register
MAC
ERn
ERm
Condition Code
H: Previous value remains unchanged.
N: Previous value remains unchanged.
Z: Previous value remains unchanged.
V: Previous value remains unchanged.
C: Previous value remains unchanged.
Rev. 4.00 Feb 24, 2006 page 131 of 322
—
I
UI H
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Section 2 Instruction Descriptions
—
Multiply and Accumulate
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U
—*
N
REJ09B0139-0400
—*
Z
—* —
V
C
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