C8051F317-GMR Silicon Laboratories Inc, C8051F317-GMR Datasheet - Page 205
C8051F317-GMR
Manufacturer Part Number
C8051F317-GMR
Description
MCU 8-Bit C8051F31x 8051 CISC 16KB Flash 3.3V 24-Pin QFN EP T/R
Manufacturer
Silicon Laboratories Inc
Datasheet
1.C8051F310-TB.pdf
(228 pages)
Specifications of C8051F317-GMR
Package
24QFN EP
Device Core
8051
Family Name
C8051F31x
Maximum Speed
25 MHz
Ram Size
1.25 KB
Program Memory Size
16 KB
Operating Supply Voltage
3.3 V
Data Bus Width
8 Bit
Program Memory Type
Flash
Number Of Programmable I/os
21
Interface Type
I2C/SMBus/SPI/UART
On-chip Adc
17-chx10-bit
Operating Temperature
-40 to 85 °C
Number Of Timers
4
Available stocks
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Part Number
Manufacturer
Quantity
Price
Part Number:
C8051F317-GMR
Manufacturer:
SILICON LABS/芯科
Quantity:
20 000
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18.2. 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 18.2 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 18.3 for details on the PCA interrupt configuration.
PWM16 ECOM CAPP CAPN
X = Don’t Care
X
X
X
X
X
X
0
1
Table 18.2. PCA0CPM Register Settings for PCA Capture/Compare Modules
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
(for n = 0 to 4)
PCA0CPMn
E
C
O
M
n
X
X
X
1
1
1
1
1
C
A
P
P
n
(CCF0)
(CCF1)
(CCF2)
(CCF3)
(CCF4)
C
A
P
N
n
M
A
T
n
T
O
G
n
W
M
P
n
E
C
C
F
n
1
0
1
0
0
0
0
0
C
F
C
R
PCA0CN
C
C
F
4
Figure 18.3. PCA Interrupt Block Diagram
C
C
F
3
C
C
F
2
C
C
F
1
0
1
1
0
0
0
0
0
C
C
F
0
ECCF0
ECCF1
ECCF2
ECCF3
ECCF4
C
D
L
I
W
D
T
E
PCA0MD
W
D
C
K
L
MAT
C
P
S
X
X
X
2
0
0
0
1
1
C
P
S
1
0
1
0
1
0
1
0
1
0
1
C
P
S
0
E
C
F
0
1
TOG
0
0
0
0
1
1
0
0
Rev. 1.7
PWM ECCF
0
0
0
0
0
1
1
1
C8051F310/1/2/3/4/5/6/7
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
EPCA0
Operation Mode
0
1
EA
0
1
Interrupt
Priority
Decoder
205
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