C8051F000DK-H Silicon Laboratories Inc, C8051F000DK-H Datasheet - Page 157
![no-image](/images/manufacturer_photos/0/6/609/silicon_laboratories_inc_sml.jpg)
C8051F000DK-H
Manufacturer Part Number
C8051F000DK-H
Description
DEV KIT FOR C8051F000/F001/F002
Manufacturer
Silicon Laboratories Inc
Datasheet
1.C8051F005-TB.pdf
(171 pages)
Specifications of C8051F000DK-H
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
- Current page: 157 of 171
- Download datasheet (2Mb)
20.1.2. Software Timer (Compare) Mode
In Software Timer mode, the PCA counter/timer is compared to the module’s 16-bit capture/compare register
(PCA0CPHn and PCA0CPLn). When a match occurs, the Capture/Compare Flag (CCFn) in PCA0CN is set to
logic 1 and an interrupt request is generated if CCF interrupts are enabled. The CCFn bit is not automatically
cleared by hardware when the CPU vectors to the interrupt service routine, and must be cleared by software.
Setting the ECOMn and MATn bits in the PCA0CPMn register enables Software Timer mode.
20.1.3. High Speed Output Mode
In this mode, each time a match occurs between the PCA Timer Counter and a module’s 16-bit capture/compare
register (PCA0CPHn and PCA0CPLn) the logic level on the module’s associated CEXn pin will toggle. Setting the
TOGn, MATn, and ECOMn bits in the PCA0CPMn register enables the High-Speed Output mode.
157
C8051F000/1/2/5/6/7
C8051F010/1/2/5/6/7
PCA0CPLn
Write to
Reset
PCA0CPLn
Write to
Reset
PCA0CPHn
Write to
PCA0CPHn
Write to
0
ENB
ENB
1
Figure 20.5. PCA High Speed Output Mode Diagram
0
1
ENB
ENB
Figure 20.4. PCA Software Timer Mode Diagram
PCA
Timebase
Enable
E
C
O
M
n
PCA0CPMn
C
A
P
P
n
0 0
C
A
P
N
n
M
A
T
n
E
C
O
M
n
PCA0CPLn
O
G
T
n
0 0
PCA0CPMn
C
A
P
P
n
0 0
PCA0L
W
P
M
n
C
A
P
N
n
16-bit Comparator
E
C
C
F
n
x
Enable
M
A
T
n
O
G
T
n
W
M
P
n
0 x
C
C
E
F
n
PCA
Timebase
PCA0CPHn
PCA0H
Rev. 1.7
PCA0CPLn
PCA0L
16-bit Comparator
Match
Toggle
PCA0CPHn
PCA0H
C
F
C
R
PCA0CN
TOGn
0
1
C
C
F
4
C
C
F
3
0
1
C
C
F
2
PCA Interrupt
CEXn
C
C
F
1
C
C
F
0
Match
Crossbar
C
F
C
R
PCA0CN
0
1
C
C
F
4
C
C
F
3
C
C
F
2
PCA Interrupt
Port I/O
C
C
F
1
C
C
F
0
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