C8051F302 Silicon Laboratories Inc, C8051F302 Datasheet - Page 147

• Manufacturer Part Number: C8051F302
• Description: IC 8051 MCU 8K FLASH 11MLP
• Manufacturer: Silicon Laboratories Inc
• Series: C8051F30xr

Specifications of C8051F302

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 25MHz
• Connectivity: SMBus (2-Wire/I²C), UART/USART
• Peripherals: POR, PWM, Temp Sensor, WDT
• Number Of I /o: 8
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 3.6 V
• Data Converters: A/D 8x8b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 11-VQFN
• Data Bus Width: 8 bit
• Data Ram Size: 256 B
• Interface Type: I2C, SMBus, UART
• Maximum Clock Frequency: 25 MHz
• Number Of Programmable I/os: 8
• Number Of Timers: 16 bit
• Operating Supply Voltage: 2.7 V to 3.6 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 8 bit
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: No

16.2. Capture/Compare Modules
Each module can be configured to operate independently in one of six operation modes: Edge-triggered Capture,
Software Timer, High Speed Output, Frequency Output, 8-Bit Pulse Width Modulator, or 16-Bit Pulse Width Modu-
lator. Each module has Special Function Registers (SFRs) associated with it in the CIP-51 system controller. These
registers are used to exchange data with a module and configure the module's mode of operation.
Table 16.2 summarizes the bit settings in the PCA0CPMn registers used to select the PCA capture/compare module’s
operating modes. Setting the ECCFn bit in a PCA0CPMn register enables the module's CCFn interrupt. Note: PCA0
interrupts must be globally enabled before individual CCFn interrupts are recognized. PCA0 interrupts are globally
enabled by setting the EA bit and the EPCA0 bit to logic 1. See Figure 16.3 for details on the PCA interrupt configu-
ration.
PWM16 ECOM CAPP CAPN
Timer Overflow
PCA Counter/
X
X
X
X
X
X
0
1
Table 16.2. PCA0CPM Register Settings for PCA Capture/Compare Modules
W
M
P
1
6
n
PCA Module 0
PCA Module 1
PCA Module 2
(for n = 0 to 2)
PCA0CPMn
O
M
E
C
n
C
A
P
P
n
(CCF0)
(CCF1)
(CCF2)
X = Don’t Care
C
A
P
N
n
M
A
T
n
X
X
X
1
1
1
1
1
O
G
T
n
W
P
M
n
E
C
C
F
n
C
F
1
0
1
0
0
0
0
0
C
R
PCA0CN
Figure 16.3. PCA Interrupt Block Diagram
C
C
F
2
C
C
F
1
0
1
1
0
0
0
0
0
C
C
F
0
ECCF0
ECCF1
ECCF2
C
D
L
I
MAT
W
D
T
E
PCA0MD
W
D
C
L
K
X
X
X
0
0
0
1
1
C
P
S
2
C
P
S
1
0
1
0
1
0
1
C
P
S
0
TOG
C
E
F
0
0
0
0
1
1
0
0
0
1
Rev. 2.3
PWM ECCF
0
0
0
0
0
1
1
1
X
X
X
X
X
X
X
X
C8051F300/1/2/3/4/5
Capture triggered by negative edge on
Capture triggered by positive edge on
EPCA0
Capture triggered by transition on
16-Bit Pulse Width Modulator
8-Bit Pulse Width Modulator
High Speed Output
Frequency Output
Operation Mode
Software Timer
0
1
CEXn
CEXn
CEXn
EA
0
1
Interrupt
Priority
Decoder
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