C8051F350 Silicon Laboratories Inc, C8051F350 Datasheet - Page 209

• Manufacturer Part Number: C8051F350
• Description: IC 8051 MCU 8K FLASH 32LQFP
• Manufacturer: Silicon Laboratories Inc
• Series: C8051F35xr

Specifications of C8051F350

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 50MHz
• Connectivity: SMBus (2-Wire/I²C), SPI, UART/USART
• Peripherals: POR, PWM, Temp Sensor, WDT
• Number Of I /o: 17
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Ram Size: 768 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 3.6 V
• Data Converters: A/D 8x24b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 32-LQFP
• Data Bus Width: 8 bit
• Data Rom Size: 128 B
• On-chip Adc: 10 bit
• Number Of Timers: 16 bit
• Operating Supply Voltage: 2.7 V to 3.6 V
• Mounting Style: SMD/SMT
• Height: 1.4 mm
• Length: 7 mm
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Width: 7 mm
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: No RoHS Version Available

23.2. 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 Modulator. 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 23.2 summarizes the bit settings in the PCA0CPMn registers used to select the PCA capture/com-
pare 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 rec-
ognized. PCA0 interrupts are globally enabled by setting the EA bit and the EPCA0 bit to logic 1. See
Figure 23.3 for details on the PCA interrupt configuration.
PWM16 ECOM CAPP CAPN
Timer Overflow
PCA Counter/
Table 23.2. PCA0CPM Register Settings for PCA Capture/Compare Modules
X
X
X
X
X
X
0
1
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)
C
A
P
N
n
X = Don’t Care
M
A
T
n
O
G
T
n
W
M
X
X
X
P
1
1
1
1
1
n
E
C
C
F
n
C
F
C
R
PCA0CN
1
0
1
0
0
0
0
0
C
C
F
2
Figure 23.3. PCA Interrupt Block Diagram
C
C
F
1
C
C
F
0
ECCF0
ECCF1
ECCF2
0
1
1
0
0
0
0
0
C
D
L
I
W
D
E
T
PCA0MD
W
D
L
C
K
C
P
S
2
MAT
C
P
S
1
0
1
0
1
0
1
X
X
X
C
P
S
0
0
0
0
1
1
E
C
F
0
1
TOG
0
0
0
0
1
1
0
0
Rev. 0.4209
PWM ECCF Operation Mode
0
0
0
0
0
1
1
1
X
X
X
X
X
X
X
X
Capture triggered by positive edge
on CEXn
Capture triggered by negative
edge on CEXn
Capture triggered by transition on
CEXn
Software Timer
High Speed Output
Frequency Output
8-Bit Pulse Width Modulator
16-Bit Pulse Width Modulator
C8051F350/1/2/3
EPCA0
0
1
EA
0
1
Interrupt
Priority
Decoder