c8051f410 Silicon Laboratories, c8051f410 Datasheet - Page 262

• Manufacturer Part Number: c8051f410
• Description: 2.0 V, 32/16 Kb Flash, Smartclock, 12-bit Adc
• Manufacturer: Silicon Laboratories

C8051F410/1/2/3
262
Bit7:
Bit6:
Bit5:
Bit4:
Bits3–1: CPS2–CPS0: PCA Counter/Timer Pulse Select.
Bit0:
Note: When the WDTE bit is set to ‘1’, the PCA0MD register cannot be modified. To change the
CIDL
R/W
Bit7
contents of the PCA0MD register, the Watchdog Timer must first be disabled.
CIDL: PCA Counter/Timer Idle Control.
Specifies PCA behavior when CPU is in Idle Mode.
0: PCA continues to function normally while the system controller is in Idle Mode.
1: PCA operation is suspended while the system controller is in Idle Mode.
WDTE: Watchdog Timer Enable
If this bit is set, PCA Module 5 is used as the watchdog timer.
0: Watchdog Timer disabled.
1: PCA Module 5 enabled as Watchdog Timer.
WDLCK: Watchdog Timer Lock
This bit locks/unlocks the Watchdog Timer Enable. When WDLCK is set, the Watchdog
Timer may not be disabled until the next system reset.
0: Watchdog Timer Enable unlocked.
1: Watchdog Timer Enable locked.
UNUSED. Read = 0b, Write = don't care.
These bits select the timebase source for the PCA counter
ECF: PCA Counter/Timer Overflow Interrupt Enable.
This bit sets the masking of the PCA Counter/Timer Overflow (CF) interrupt.
0: Disable the CF interrupt.
1: Enable a PCA Counter/Timer Overflow interrupt request when CF (PCA0CN.7) is set.
*Note: External clock divided by 8 and smaRTClock clock divided by 8 are synchronized with the
CPS2
WDTE
0
0
0
0
1
1
1
1
R/W
Bit6
system clock.
CPS1
WDLCK
SFR Definition 25.2. PCA0MD: PCA Mode
0
0
1
1
0
0
1
1
R/W
Bit5
CPS0
0
1
0
1
0
1
0
1
Bit4
R
-
System clock divided by 12
System clock divided by 4
Timer 0 overflow
High-to-low transitions on ECI (max rate = system clock
divided by 4)
System clock
External clock divided by 8
smaRTClock clock divided by 8
Reserved
Rev. 1.0
CPS2
R/W
Bit3
CPS1
R/W
Bit2
Timebase
*
.
CPS0
R/W
Bit1
*
SFR Address: 0xD9
ECF
R/W
Bit0
01000000
Addressable
Reset Value
Bit