C8051F960-A-GQ Silicon Labs, C8051F960-A-GQ Datasheet - Page 456
![no-image](/images/no-image-200.jpg)
C8051F960-A-GQ
Manufacturer Part Number
C8051F960-A-GQ
Description
8-bit Microcontrollers - MCU 128KB DC-DC LCD AES
Manufacturer
Silicon Labs
Datasheet
1.C8051F960-A-GQ.pdf
(492 pages)
Specifications of C8051F960-A-GQ
Rohs
yes
Core
8051
Processor Series
C8051
Data Bus Width
8 bit
Maximum Clock Frequency
24.5 MHz
Program Memory Size
128 KB
Data Ram Size
8 KB
On-chip Adc
Yes
Operating Supply Voltage
1.8 V to 3.8 V
Operating Temperature Range
- 40 C to + 85 C
Package / Case
QFP-80
Mounting Style
SMD/SMT
Available stocks
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Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
C8051F960-A-GQ
Manufacturer:
Silicon Laboratories Inc
Quantity:
10 000
Company:
Part Number:
C8051F960-A-GQR
Manufacturer:
Silicon Laboratories Inc
Quantity:
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C8051F96x
When Capture Mode is enabled, a capture event will be generated either every Comparator 0 rising edge
or every 8 SmaRTClock clock cycles, depending on the T2XCLK1 setting. When the capture event occurs,
the
(TMR2RLH:TMR2RLL) and the TF2H flag is set (triggering an interrupt if Timer 2 interrupts are enabled).
By recording the difference between two successive timer capture values, the Comparator 0 or SmaRT-
Clock period can be determined with respect to the Timer 2 clock. The Timer 2 clock should be much faster
than the capture clock to achieve an accurate reading.
For example, if T2ML = 1b, T2XCLK1 = 0b, and TF2CEN = 1b, Timer 2 will clock every SYSCLK and cap-
ture every SmaRTClock clock divided by 8. If the SYSCLK is 24.5 MHz and the difference between two
successive captures is 5984, then the SmaRTClock clock is as follows:
24.5 MHz/(5984/8) = 0.032754 MHz or 32.754 kHz.
This mode allows software to determine the exact SmaRTClock frequency in self-oscillate mode and the
time between consecutive Comparator 0 rising edges, which is useful for detecting changes in the capaci-
tance of a Touch Sense Switch.
456
SmaRTClock / 8
SmaRTClock / 8
contents
Comparator 0
SYSCLK / 12
Comparator 0
SYSCLK
of
T2XCLK[1:0]
T2XCLK1
Timer
X0
01
11
0
1
Figure 32.6. Timer 2 Capture Mode Block Diagram
M
H
T
3
2
M
T
3
L
CKCON
M
T
H
2
(TMR2H:TMR2L)
T
M
0
1
2
L
M
T
1
M
T
0
S
C
A
1
TF2CEN
S
C
A
0
TR2
Rev. 0.5
Capture
are
TCLK
loaded
TMR2RLL TMR2RLH
TMR2L
into
TMR2H
the
Timer 2
T2XCLK1
T2XCLK0
TF2CEN
T2SPLIT
TF2LEN
TF2H
TF2L
TR2
reload
registers
Interrupt
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