C8051F902-GU Silicon Laboratories Inc, C8051F902-GU Datasheet - Page 294
![IC MCU 8BIT 8KB FLASH 24QSOP](/photos/12/15/121586/c8051f9xx_24-qsop_sml.jpg)
C8051F902-GU
Manufacturer Part Number
C8051F902-GU
Description
IC MCU 8BIT 8KB FLASH 24QSOP
Manufacturer
Silicon Laboratories Inc
Series
C8051F9xxr
Specifications of C8051F902-GU
Program Memory Type
FLASH
Program Memory Size
8KB (8K x 8)
Package / Case
24-QSOP
Core Processor
8051
Core Size
8-Bit
Speed
25MHz
Connectivity
SMBus (2-Wire/I²C), SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
Number Of I /o
16
Ram Size
768 x 8
Voltage - Supply (vcc/vdd)
0.9 V ~ 3.6 V
Data Converters
A/D 15x10/12b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Processor Series
C8051F9x
Core
8051
Data Ram Size
768 B
Interface Type
UART
Maximum Clock Frequency
25 MHz
Number Of Timers
4
Operating Supply Voltage
0.9 V to 3.6 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
PK51, CA51, A51, ULINK2
Development Tools By Supplier
C8051F912DK
Minimum Operating Temperature
- 40 C
On-chip Adc
12 bit
Package
24QSOP
Device Core
8051
Family Name
C8051F90x
Maximum Speed
25 MHz
Data Bus Width
8 Bit
Number Of Programmable I/os
16
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
336-1849-5
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
C8051F902-GU
Manufacturer:
SEMIKRON
Quantity:
45
Company:
Part Number:
C8051F902-GU
Manufacturer:
Silicon Laboratories Inc
Quantity:
135
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C8051F91x-C8051F90x
26.2. PCA0 Interrupt Sources
Figure 26.3 shows a diagram of the PCA interrupt tree. There are eight independent event flags that can
be used to generate a PCA0 interrupt. They are: the main PCA counter overflow flag (CF), which is set
upon a 16-bit overflow of the PCA0 counter, an intermediate overflow flag (COVF), which can be set on an
overflow from the 8th, 9th, 10th, or 11th bit of the PCA0 counter, and the individual flags for each PCA
channel (CCF0, CCF1, CCF2, CCF3, CCF4, and CCF5), which are set according to the operation mode of
that module. These event flags are always set when the trigger condition occurs. Each of these flags can
be individually selected to generate a PCA0 interrupt, using the corresponding interrupt enable flag (ECF
for CF, ECOV for COVF, and ECCFn for each CCFn). PCA0 interrupts must be globally enabled before any
individual interrupt sources are recognized by the processor. PCA0 interrupts are globally enabled by
setting the EA bit and the EPCA0 bit to logic 1.
294
*Only available on ‘F912 and ‘F902 devices.
SYSCLK/12
SYSCLK/4
Timer 0 Overflow
ECI
SYSCLK
External Clock/8
SmaRTClock/8*
C
D
L
I
W
D
T
E
PCA0MD
W
D
C
K
L
C
P
S
2
000
001
010
011
100
101
110
C
P
S
1
C
P
S
0
E
C
F
Figure 26.2. PCA Counter/Timer Block Diagram
IDLE
C
F
C
R
PCA0CN
C
C
F
5
C
C
F
4
C
C
F
3
C
C
F
2
C
C
F
1
C
C
F
0
0
1
Rev. 1.0
PCA0L
read
Snapshot
Register
PCA0H
PCA0L
To SFR Bus
To PCA Modules
Overflow
CF
To PCA Interrupt System
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