HD64F7045F28V Renesas Electronics America, HD64F7045F28V Datasheet - Page 205

• Manufacturer Part Number: HD64F7045F28V
• Description: IC SH2 MCU FLASH 144QFP
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7040r

Specifications of HD64F7045F28V

• Core Processor: SH-2
• Core Size: 32-Bit
• Speed: 28.7MHz
• Connectivity: EBI/EMI, SCI
• Peripherals: DMA, POR, PWM, WDT
• Number Of I /o: 98
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 144-QFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

6.1.31
Description: Does signed multiplication of 32-bit operands obtained using the contents of general
registers Rm and Rn as addresses. The 64-bit result is added to contents of the MAC register, and
the final result is stored in the MAC register. Every time an operand is read, they increment Rm
and Rn by four.
When the S bit is cleared to 0, the 64-bit result is stored in the coupled MACH and MACL
registers. When bit S is set to 1, addition to the MAC register is a saturation operation of 48 bits
starting from the LSB. For the saturation operation, only the lower 48 bits of the MACL register
are enabled and the result is limited to a range of H'FFFF800000000000 (minimum) and
H'00007FFFFFFFFFFF (maximum).
Operation:
Format
MAC.L @Rm+,
MACL(long m,long n) /* MAC.L @Rm+,@Rn+*/
{
unsigned long RnL,RnH,RmL,RmH,Res0,Res1,Res2;
unsigned long temp0,templ,temp2,temp3;
long tempm,tempn,fnLmL;
tempn=(long)Read_Long(R[n]);
R[n]+=4;
tempm=(long)Read_Long(R[m]);
R[m]+=4;
if ((long)(tempn^tempm)<0) fnLmL=-1;
else fnLmL=0;
if (tempn<0) tempn=0-tempn;
if (tempm<0) tempm=0-tempm;
@Rn+
MAC.L (Multiply and Accumulate Calculation Long): Arithmetic Instruction
Abstract
Signed operation,
(Rn)
MAC
(Rm) + MAC
Code
0000nnnnmmmm1111 3/(2
Rev. 5.00 Jun 30, 2004 page 189 of 512
Cycle T Bit SH-1 SH-2
to 4)
Section 6 Instruction Descriptions
—
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REJ09B0171-0500O
Instructions
Applicable
SH-
DSP