CP3UB26G18NEPX National Semiconductor, CP3UB26G18NEPX Datasheet - Page 67
CP3UB26G18NEPX
Manufacturer Part Number
CP3UB26G18NEPX
Description
Manufacturer
National Semiconductor
Datasheet
1.CP3UB26G18NEPX.pdf
(270 pages)
Specifications of CP3UB26G18NEPX
Operating Temperature (min)
-40C
Operating Temperature (max)
85C
Operating Temperature Classification
Industrial
Mounting
Surface Mount
Pin Count
128
Package Type
LQFP
Lead Free Status / RoHS Status
Not Compliant
Available stocks
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Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
CP3UB26G18NEPX
Manufacturer:
Texas Instruments
Quantity:
10 000
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13.1.11 Wake-Up Pending Register (WK0PND)
The WK0PND register is a word-wide read/write register in
which the Multi-Input Wake-Up module latches any detect-
ed trigger conditions. The CPU can only write a 1 to any bit
position in this register. If the CPU attempts to write a 0, it
has no effect on that bit. To clear a bit in this register, the
CPU must use the WK0PCL register. This implementation
prevents a potential hardware-software conflict during a
read-modify-write operation on the WK0PND register.
This register is cleared upon reset. The register format is
shown below.
WKPD
13.1.12 Wake-Up 1 Pending Register (WK1PND)
The WK1PND register is a word-wide read/write register in
which the Multi-Input Wake-Up module latches any detect-
ed trigger conditions. The CPU can only write a 1 to any bit
position in this register. If the CPU attempts to write a 0, it
has no effect on that bit. To clear a bit in this register, the
CPU must use the WK1PCL register. This implementation
prevents a potential hardware-software conflict during a
read-modify-write operation on the WK1PND register.
This register is cleared upon reset. The register format is
shown below.
WKPD
15
15
The Wake-Up Pending bits indicate which
MIWU channels have been triggered. The
WKPD15:0 bits correspond to the WUI15:0
channels. Writing 1 to a bit sets it.
0
1
The Wake-Up Pending bits indicate which
MIWU channels have been triggered. The
WKPD15:0 bits correspond to the WUI31:15
channels. Writing 1 to a bit sets it.
0
1
–
–
–
–
Trigger condition did not occur.
Trigger condition occurred.
Trigger condition did not occur.
Trigger condition occurred.
WKPD
WKPD
0
0
67
13.1.13 Wake-Up Pending Clear Register (WK0PCL)
The WK0PCL register is a word-wide write-only register that
lets the CPU clear bits in the WKPND register. Writing a 1
to a bit position in the WKPCL register clears the corre-
sponding bit in the WKPND register. Writing a 0 has no ef-
fect. Do not modify this register with instructions that access
the register as a read-modify-write operand, such as the bit
manipulation instructions.
Reading this register location returns undefined data.
Therefore, do not use a read-modify-write sequence (such
as the SBIT instruction) to set individual bits. Do not attempt
to read the register, then perform a logical OR on the regis-
ter value. Instead, write the mask directly to the register ad-
dress. The register format is shown below.
WKCL
13.1.14 Wake-Up 1 Pending Clear Register (WK1PCL)
The WK1PCL register is a word-wide write-only register that
lets the CPU clear bits in the WK1PND register. Writing a 1
to a bit position in the WK1PCL register clears the corre-
sponding bit in the WK1PND register. Writing a 0 has no ef-
fect. Do not modify this register with instructions that access
the register as a read-modify-write operand, such as the bit
manipulation instructions.
Reading this register location returns undefined data.
Therefore, do not use a read-modify-write sequence (such
as the SBIT instruction) to set individual bits. Do not attempt
to read the register, then perform a logical OR on the regis-
ter value. Instead, write the mask directly to the register ad-
dress. The register format is shown below.
WKCL
15
15
Writing 1 to a bit clears it.
0
1
Writing 1 to a bit clears it.
0
1
–
–
–
–
Writing 0 has no effect.
Writing 1 clears the corresponding bit in
the WKPD register.
Writing 0 has no effect.
Writing 1 clears the corresponding bit in
the WK1PD register.
WKCL
WKCL
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0
0
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