AC164139 Microchip Technology, AC164139 Datasheet - Page 43
![Graphics Display Prototype Board Graphics](/photos/28/36/283699/ac164139_sml.jpg)
AC164139
Manufacturer Part Number
AC164139
Description
Graphics Display Prototype Board Graphics
Manufacturer
Microchip Technology
Specifications of AC164139
Main Purpose
LCD Development
Embedded
No
Utilized Ic / Part
PICtail™ Plus Board
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Secondary Attributes
-
Primary Attributes
-
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AC164139
Manufacturer:
Microchip Technology
Quantity:
135
- Current page: 43 of 408
- Download datasheet (4Mb)
REGISTER 3-2:
3.3
The PIC24F ALU is 16 bits wide and is capable of addi-
tion, subtraction, bit shifts and logic operations. Unless
otherwise mentioned, arithmetic operations are 2’s
complement in nature. Depending on the operation, the
ALU may affect the values of the Carry (C), Zero (Z),
Negative (N), Overflow (OV) and Digit Carry (DC)
Status bits in the SR register. The C and DC Status bits
operate as Borrow and Digit Borrow bits, respectively,
for subtraction operations.
The ALU can perform 8-bit or 16-bit operations,
depending on the mode of the instruction that is used.
Data for the ALU operation can come from the W
register array, or data memory, depending on the
addressing mode of the instruction. Likewise, output
data from the ALU can be written to the W register array
or a data memory location.
2010 Microchip Technology Inc.
bit 15
bit 7
Legend:
R = Readable bit
-n = Value at POR
bit 15-4
bit 3
bit 2
bit 1-0
Note 1:
U-0
U-0
—
—
Arithmetic Logic Unit (ALU)
The IPL3 bit is concatenated with the IPL<2:0> bits (SR<7:5>) to form the CPU interrupt priority level; see
Register 3-1 for bit description.
Unimplemented: Read as ‘0’
IPL3: CPU Interrupt Priority Level Status bit
1 = CPU interrupt priority level is greater than 7
0 = CPU interrupt priority level is 7 or less
Reserved: Read as ‘1’
Unimplemented: Read as ‘0’
U-0
U-0
—
—
CORCON: CPU CONTROL REGISTER
C = Clearable bit
W = Writable bit
‘1’ = Bit is set
U-0
U-0
—
—
U-0
U-0
—
—
PIC24FJ256DA210 FAMILY
r = Reserved bit
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
R/C-0, HSC
IPL3
U-0
—
(1)
(1)
The PIC24F CPU incorporates hardware support for
both multiplication and division. This includes a
dedicated hardware multiplier and support hardware
for 16-bit divisor division.
3.3.1
The ALU contains a high-speed, 17-bit x 17-bit
multiplier. It supports unsigned, signed or mixed sign
operation in several multiplication modes:
1.
2.
3.
4.
5.
6.
7.
U-0
R-1
16-bit x 16-bit signed
16-bit x 16-bit unsigned
16-bit signed x 5-bit (literal) unsigned
16-bit unsigned x 16-bit unsigned
16-bit unsigned x 5-bit (literal) unsigned
16-bit unsigned x 16-bit signed
8-bit unsigned x 8-bit unsigned
—
r
MULTIPLIER
HSC = Hardware Settable/Clearable bit
x = Bit is unknown
U-0
U-0
—
—
DS39969B-page 43
U-0
U-0
—
—
bit 8
bit 0
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