HD64F7044F28V Renesas Electronics America, HD64F7044F28V Datasheet - Page 381

• Manufacturer Part Number: HD64F7044F28V
• Description: IC SUPERH MCU FLASH 112QFP
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7040r

Specifications of HD64F7044F28V

• Core Processor: SH-2
• Core Size: 32-Bit
• Speed: 28.7MHz
• Connectivity: EBI/EMI, SCI
• Peripherals: DMA, POR, PWM, WDT
• Number Of I /o: 74
• 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: 112-QFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

6.3.16
Description: Does rounding. Adds the immediate data H'00008000 to the contents of the Sx and
Sy operands, stores the result in the upper word of the Dz operand, and clears the bottom word of
Dz with zeros.
The DC bit of the DSR register is updated according to the specifications for the CS bits. The N,
Z, V, and GT bits of the DSR register are also updated.
Operation:
Format
PRND
Sx,Dz
PRND
Sy,Dz
/* Case1 : PRND Sx,Dz
/* Case2 : PRND Sy,Dz
{
unsigned char carry_bit, borrow_bit, negative_bit, zero_bit,
overflow_bit;
/* ALU Sources assignment */
DSP_ALU_SRC2 = 0x00008000;
DSP_ALU_SRC2G= 0x0;
if (Case1) { /* Sx + H'00008000
PRND (Rounding): DSP Arithmetic Operation Instruction
Abstract
Sx H'00008000 Dz
clear LSW of Dz
Sy H'00008000 Dz
clear LSW of Dz
switch (xx) {
case 0x0:
case 0x1:
if (DSP_ALU_SRC1_MSB) DSP_ALU_SRC1G = 0xff;
else
break;
if (DSP_ALU_SRC1_MSB) DSP_ALU_SRC1G = 0xff;
DSP_ALU_SRC1
DSP_ALU_SRC1
/* Sx Operand selection bit (xx) */
Code
111110**********
10011000xx00zzzz
111110**********
1011100000yyzzzz
DSP_ALU_SRC1G = 0x0;
*/
*/
= X0;
= X1;
Dz; clr Dz LW */
Rev. 5.00 Jun 30, 2004 page 365 of 512
Cycle DC Bit
1
1
Section 6 Instruction Descriptions
Update —
Update —
SH-1 SH-2
REJ09B0171-0500O
Instructions
Applicable
—
—
SH-
DSP