C8051F374 View Datasheet(PDF) - Silicon Laboratories
Part Name
Description
Manufacturer
C8051F374 Datasheet PDF : 300 Pages
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C8051F39x/37x
SFR Definition 32.5. PCA0CPMn: PCA Capture/Compare Mode
Bit
Name
Type
Reset
7
PWM16n
R/W
0
6
ECOMn
R/W
0
5
CAPPn
R/W
0
4
CAPNn
R/W
0
3
MATn
R/W
0
2
TOGn
R/W
0
1
PWMn
R/W
0
SFR Addresses: PCA0CPM0 = 0xDA, PCA0CPM1 = 0xDB, PCA0CPM2 = 0xDC
SFR Pages: PCA0CPM0 = All Pages, PCA0CPM1 = All Pages, PCA0CPM2 = All Pages
0
ECCFn
R/W
0
Bit
Name
Function
7 PWM16n 16-bit Pulse Width Modulation Enable.
This bit enables 16-bit mode when Pulse Width Modulation mode is enabled.
0: 8 to 11-bit PWM selected.
1: 16-bit PWM selected.
6
ECOMn Comparator Function Enable.
This bit enables the comparator function for PCA module n when set to 1.
5
CAPPn Capture Positive Function Enable.
This bit enables the positive edge capture for PCA module n when set to 1.
4
CAPNn Capture Negative Function Enable.
This bit enables the negative edge capture for PCA module n when set to 1.
3
MATn Match Function Enable.
This bit enables the match function for PCA module n when set to 1. When enabled,
matches of the PCA counter with a module's capture/compare register cause the
CCFn bit in PCA0MD register to be set to logic 1.
2
TOGn Toggle Function Enable.
This bit enables the toggle function for PCA module n when set to 1. When enabled,
matches of the PCA counter with a module's capture/compare register cause the
logic level on the CEXn pin to toggle. If the PWMn bit is also set to logic 1, the mod-
ule operates in Frequency Output Mode.
1
PWMn Pulse Width Modulation Mode Enable.
This bit enables the PWM function for PCA module n when set to 1. When enabled,
a pulse width modulated signal is output on the CEXn pin. 8 to 11-bit PWM is used if
PWM16n is cleared; 16-bit mode is used if PWM16n is set to logic 1. If the TOGn bit
is also set, the module operates in Frequency Output Mode.
0
ECCFn Capture/Compare Flag Interrupt Enable.
This bit sets the masking of the Capture/Compare Flag (CCFn) interrupt.
0: Disable CCFn interrupts.
1: Enable a Capture/Compare Flag interrupt request when CCFn is set.
Note: When the WDTE bit is set to 1, the PCA0CPM2 register cannot be modified, and module 2 acts as the
watchdog timer. To change the contents of the PCA0CPM2 register or the function of module 2, the Watchdog
Timer must be disabled.
292
Preliminary Rev. 0.71
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