MA330028 Microchip Technology, MA330028 Datasheet - Page 38

• Manufacturer Part Number: MA330028
• Description: Daughter Cards & OEM Boards dsPIC33EP64MC504 PIM
• Manufacturer: Microchip Technology

Specifications of MA330028

• Rohs: yes
• Product: Daughter Cards
• Core: dsPIC
• Description/function: Plug-in-module with dsPIC33EP64MC504 device for use with DM330021 and DM330023 motor control development board
• Interface Type: CAN, I2C, SPI
• Operating Supply Voltage: 3 to 3.6 V
• Tool Is For Evaluation Of: dsPIC33EP64MC504
• For Use With: DM330021, DM330023

3.7
REGISTER 3-1:
DS70657E-page 38
bit 15
bit 7
Legend:
R = Readable bit
-n = Value at POR
bit 15
bit 14
bit 13
bit 12
bit 11
bit 10
bit 9
bit 8
Note 1:
R/W-0
R/W-0
OA
2:
3:
4:
(1)
CPU Control Registers
(2,3)
This bit is available on dsPIC33EPXXXMC20X/50X and dsPIC33EPXXXGP50X devices only.
The IPL<2:0> bits are concatenated with the IPL<3> bit (CORCON<3>) to form the CPU Interrupt Priority
Level. The value in parentheses indicates the IPL, if IPL<3> = 1. User interrupts are disabled when
IPL<3> = 1.
The IPL<2:0> Status bits are read only when the NSTDIS bit (INTCON1<15>) = 1.
A data write to the SR register can modify the SA and SB bits by either a data write to SA and SB or by
clearing the SAB bit. To avoid a possible SA or SB bit write race condition, the SA and SB bits should not
be modified using bit operations.
OA: Accumulator A Overflow Status bit
1 = Accumulator A has overflowed
0 = Accumulator A has not overflowed
OB: Accumulator B Overflow Status bit
1 = Accumulator B has overflowed
0 = Accumulator B has not overflowed
SA: Accumulator A Saturation ‘Sticky’ Status bit
1 = Accumulator A is saturated or has been saturated at some time
0 = Accumulator A is not saturated
SB: Accumulator B Saturation ‘Sticky’ Status bit
1 = Accumulator B is saturated or has been saturated at some time
0 = Accumulator B is not saturated
OAB: OA || OB Combined Accumulator Overflow Status bit
1 = Accumulators A or B have overflowed
0 = Neither Accumulators A or B have overflowed
SAB: SA || SB Combined Accumulator ‘Sticky’ Status bit
1 = Accumulators A or B are saturated or have been saturated at some time
0 = Neither Accumulator A or B are saturated
DA: DO Loop Active bit
1 = DO loop in progress
0 = DO loop not in progress
DC: MCU ALU Half Carry/Borrow bit
1 = A carry-out from the 4th low order bit (for byte-sized data) or 8th low order bit (for word-sized data)
0 = No carry-out from the 4th low order bit (for byte-sized data) or 8th low order bit (for word-sized
IPL<2:0>
R/W-0
R/W-0
of the result occurred
data) of the result occurred
OB
SR: CPU STATUS REGISTER
(1)
(2,3)
W = Writable bit
‘1’= Bit is set
R/W-0
SA
R/W-0
(1,4)
(2,3)
(1)
SB
R/W-0
R-0
RA
Preliminary
(1,4)
(1)
(1)
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
C = Clearable bit
OAB
R/W-0
R/C-0
(1,4)
(1,4)
N
(1)
(1)
(1)
SAB
R/W-0
R/C-0
OV
(1)
© 2011-2012 Microchip Technology Inc.
x = Bit is unknown
R/W-0
DA
R -0
Z
(1)
R/W-0
R/W-0
DC
C
bit 8
bit 0