HD64F7044F28V Renesas Electronics America, HD64F7044F28V Datasheet - Page 186
HD64F7044F28V
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
-
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Part Number:
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Quantity:
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Section 6 Instruction Descriptions
6.1.22
Format Abstract
DT Rn Rn – 1
Description: The contents of general register Rn are decremented by 1 and the result compared to
0 (zero). When the result is 0, the T bit is set to 1. When the result is not zero, the T bit is set to 0.
Operation:
Example:
Rev. 5.00 Jun 30, 2004 page 170 of 512
REJ09B0171-0500O
DT(long n)/* DT Rn */
{
}
LOOP:
R[n]--;
if (R[n]==0) T=1;
else T=0;
PC+=2;
DT (Decrement and Test): Arithmetic Instruction
When Rn is 0,
1
when Rn is nonzero,
0
MOV
ADD
DT
BF
T,
T
Rn;
#4,R5
R0,R1
RS
LOOP
Code
0100nnnn00010000 1
; Sets the number of loops.
;
; Decrements the R5 value and checks whether it has become 0.
; Branches to LOOP is T=0. (In this example, loops 4 times.)
Cycle T Bit
Comparison
result
SH-1 SH-2
—
Instructions
Applicable
SH-
DSP
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