C8051F127 Silicon Laboratories Inc, C8051F127 Datasheet - Page 328
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C8051F127
Manufacturer Part Number
C8051F127
Description
IC 8051 MCU 128K FLASH 64TQFP
Manufacturer
Silicon Laboratories Inc
Series
C8051F12xr
Specifications of C8051F127
Core Processor
8051
Core Size
8-Bit
Speed
50MHz
Connectivity
EBI/EMI, SMBus (2-Wire/I²C), SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
Number Of I /o
32
Program Memory Size
128KB (128K x 8)
Program Memory Type
FLASH
Ram Size
8.25K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 3.6 V
Data Converters
A/D 8x8b, 8x10b; D/A 2x12b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
64-TQFP, 64-VQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
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C8051F130/1/2/3
24.2. 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 24.2 summarizes the bit settings in the PCA0CPMn registers used to select the PCA0 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 (IE.7) and the EPCA0 bit (EIE1.3) to
logic 1. See Figure 24.3 for details on the PCA interrupt configuration.
328
Timer Overflow
PCA Counter/
W
M
P
1
6
n
PCA Module 0
PCA Module 1
PCA Module 2
PCA Module 3
PCA Module 4
PCA Module 5
(for n = 0 to 5)
PCA0CPMn
O
M
E
C
n
C
A
P
P
n
(CCF0)
(CCF1)
(CCF2)
(CCF3)
(CCF4)
(CCF5)
C
A
P
N
n
M
A
T
n
O
G
T
n
W
M
P
n
E
C
C
F
n
C
F
C
R
PCA0CN
C
C
F
5
C
C
F
4
C
C
F
3
Figure 24.3. PCA Interrupt Block Diagram
C
C
F
2
C
C
F
1
C
C
F
0
ECCF0
ECCF1
ECCF2
ECCF3
ECCF4
ECCF5
C
D
L
I
PCA0MD
C
P
S
2
C
P
S
1
0
1
0
1
0
1
0
1
0
1
0
1
C
P
S
0
E
C
F
0
1
Rev. 1.4
EPCA0
(EIE.3)
0
1
(IE.7)
EA
0
1
Interrupt
Priority
Decoder
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