C8051F015-GQR Silicon Laboratories Inc, C8051F015-GQR Datasheet - Page 157
C8051F015-GQR
Manufacturer Part Number
C8051F015-GQR
Description
IC 8051 MCU 32K FLASH 64TQFP
Manufacturer
Silicon Laboratories Inc
Series
C8051F01xr
Specifications of C8051F015-GQR
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
32
Program Memory Size
32KB (32K x 8)
Program Memory Type
FLASH
Ram Size
2.25K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 3.6 V
Data Converters
A/D 8x10b; D/A 2x12b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
64-TQFP, 64-VQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
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20.1.2. Software Timer (Compare) Mode
In Software Timer mode, the PCA counter/timer is compared to the module’s 16-bit capture/compare register
(PCA0CPHn and PCA0CPLn). When a match occurs, the Capture/Compare Flag (CCFn) in PCA0CN is set to
logic 1 and an interrupt request is generated if CCF interrupts are enabled. The CCFn bit is not automatically
cleared by hardware when the CPU vectors to the interrupt service routine, and must be cleared by software.
Setting the ECOMn and MATn bits in the PCA0CPMn register enables Software Timer mode.
20.1.3. High Speed Output Mode
In this mode, each time a match occurs between the PCA Timer Counter and a module’s 16-bit capture/compare
register (PCA0CPHn and PCA0CPLn) the logic level on the module’s associated CEXn pin will toggle. Setting the
TOGn, MATn, and ECOMn bits in the PCA0CPMn register enables the High-Speed Output mode.
157
C8051F000/1/2/5/6/7
C8051F010/1/2/5/6/7
PCA0CPLn
Write to
Reset
PCA0CPLn
Write to
Reset
PCA0CPHn
Write to
PCA0CPHn
Write to
0
ENB
ENB
1
Figure 20.5. PCA High Speed Output Mode Diagram
0
1
ENB
ENB
Figure 20.4. PCA Software Timer Mode Diagram
PCA
Timebase
Enable
E
C
O
M
n
PCA0CPMn
C
A
P
P
n
0 0
C
A
P
N
n
M
A
T
n
E
C
O
M
n
PCA0CPLn
O
G
T
n
0 0
PCA0CPMn
C
A
P
P
n
0 0
PCA0L
W
P
M
n
C
A
P
N
n
16-bit Comparator
E
C
C
F
n
x
Enable
M
A
T
n
O
G
T
n
W
M
P
n
0 x
C
C
E
F
n
PCA
Timebase
PCA0CPHn
PCA0H
Rev. 1.7
PCA0CPLn
PCA0L
16-bit Comparator
Match
Toggle
PCA0CPHn
PCA0H
C
F
C
R
PCA0CN
TOGn
0
1
C
C
F
4
C
C
F
3
0
1
C
C
F
2
PCA Interrupt
CEXn
C
C
F
1
C
C
F
0
Match
Crossbar
C
F
C
R
PCA0CN
0
1
C
C
F
4
C
C
F
3
C
C
F
2
PCA Interrupt
Port I/O
C
C
F
1
C
C
F
0
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