C8051F120-TB Silicon Laboratories Inc, C8051F120-TB Datasheet - Page 322
C8051F120-TB
Manufacturer Part Number
C8051F120-TB
Description
BOARD PROTOTYPING W/C8051F120
Manufacturer
Silicon Laboratories Inc
Type
MCUr
Specifications of C8051F120-TB
Contents
Board
Processor To Be Evaluated
C8051F12x and C8051F13x
Interface Type
USB
Silicon Manufacturer
Silicon Labs
Core Architecture
8051
Silicon Core Number
C8051F120
Silicon Family Name
C8051F12x
Kit Contents
Board
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
For Use With/related Products
C8051F120
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
C8051F120-TB
Manufacturer:
Silicon Labs
Quantity:
135
- Current page: 322 of 350
- Download datasheet (2Mb)
C8051F120/1/2/3/4/5/6/7
C8051F130/1/2/3
322
Note:
Bit7–5:
Bit4–3:
Bit2:
Bit1:
Bit0:
SFR Address: TMR2CF:0xC9;TMR3CF:0xC9;TMR4CF:0xC9
SFR Page TMR2CF: page 0;TMR3CF: page 1;TMR4CF: Page 2
Bit7
-
Reserved.
TnM1 and TnM0: Timer Clock Mode Select Bits.
Bits used to select the Timer clock source. The sources can be the System Clock
(SYSCLK), SYSCLK divided by 2 or 12, or the external clock divided by 8. Clock source is
selected as follows:
00: SYSCLK/12
01: SYSCLK
10: EXTERNAL CLOCK/8 (Synchronized to the System Clock)
11: SYSCLK/2
TOGn: Toggle output state bit.
When timer is used to toggle a port pin, this bit can be used to read the state of the output, or
can be written to in order to force the state of the output (Timer 2 and Timer 4 Only).
TnOE: Timer output enable bit.
This bit enables the timer to output a 50% duty cycle output to the timer’s assigned external
port pin.
NOTE: A timer is configured for Square Wave Output as follows:
CP/RLn = 0
C/Tn
TnOE = 1
Load RCAPnH:RCAPnL (See “Square Wave Frequency (Timer 2 and Timer 4 Only)” on
page 320.)
Configure Port Pin to output squarewave (See
page
0: Output of toggle mode not available at Timers’s assigned port pin.
1: Output of toggle mode available at Timers’s assigned port pin.
DCENn: Decrement Enable Bit.
This bit enables the timer to count up or down as determined by the state of TnEX.
0: Timer will count up, regardless of the state of TnEX.
1: Timer will count up or down depending on the state of TnEX as follows:
Timer 3 and Timer 2 share the T2 and T2EX pins.
SFR Definition 23.9. TMRnCF: Timer 2, 3, and 4 Configuration
235)
Bit6
-
= 0
if TnEX = 0, the timer counts DOWN.
if TnEX = 1, the timer counts UP.
Bit5
-
TnM1
R/W
Bit4
Rev. 1.4
TnM0
R/W
Bit3
Section “18. Port Input/Output” on
TOGn
R/W
Bit2
TnOE
R/W
Bit1
DCENn
R/W
Bit0
00000000
Reset Value
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