HD64F7045F28V Renesas Electronics America, HD64F7045F28V Datasheet - Page 416

• 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: -

Section 6 Instruction Descriptions
6.3.22
Description: Subtracts the contents of the Sy operand and the DC bit from the Sx operand and
stores the result in the Dz operand. The DC bit of the DSR register is updated as the borrow flag.
The N, Z, V, and GT bits of the DSR register are also updated.
Note: After the PSUBC instruction is executed, the DC bit is updated as the borrow flag without
Operation:
Rev. 5.00 Jun 30, 2004 page 400 of 512
REJ09B0171-0500O
Format
PSUBC
Sx,Sy,Dz
/* PSUBC Sx,Sy,Dz
{
unsigned char carry_bit, borrow_bit, negative_bit, zero_bit,
overflow_bit;
/* ALU Sources assignment */
switch (xx) {
case 0x0: DSP_ALU_SRC1
case 0x1: DSP_ALU_SRC1
case 0x2: DSP_ALU_SRC1
case 0x3: DSP_ALU_SRC1
regard to the CS bit.
PSUBC (Subtraction with Carry): DSP Arithmetic Operation Instruction
Abstract
Sx – Sy – DC Dz
if (DSP_ALU_SRC1_MSB) DSP_ALU_SRC1G = 0xff;
else
break;
if (DSP_ALU_SRC1_MSB) DSP_ALU_SRC1G = 0xff;
else
break;
DSP_ALU_SRC1G = A0G;
break;
/* Sx Operand selection bit (xx) */
*/
Code
111110**********
10100000xxyyzzzz
DSP_ALU_SRC1G = 0x0;
DSP_ALU_SRC1G = 0x0;
= X0;
= X1;
= A0;
= A1;
Cycle DC Bit
1
Borrow —
SH-1 SH-2
Instructions
Applicable
—
SH-
DSP