C8051F966-A-GQ Silicon Labs, C8051F966-A-GQ Datasheet - Page 469

• Manufacturer Part Number: C8051F966-A-GQ
• Description: 8-bit Microcontrollers - MCU 32KB DC-DC LCD AES
• Manufacturer: Silicon Labs

Specifications of C8051F966-A-GQ

• Rohs: yes
• Core: 8051
• Processor Series: C8051
• Data Bus Width: 8 bit
• Maximum Clock Frequency: 24.5 MHz
• Program Memory Size: 32 KB
• Data Ram Size: 8 KB
• On-chip Adc: Yes
• Operating Supply Voltage: 1.8 V to 3.8 V
• Operating Temperature Range: - 40 C to + 85 C
• Package / Case: QFP-80
• Mounting Style: SMD/SMT

33.3. 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 to 11-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 33.2 summarizes the bit settings in the PCA0CPMn and PCA0PWM registers
used to select the PCA capture/compare module’s operating mode. Note that all modules set to use 8, 9,
10, or 11-bit PWM mode must use the same cycle length (8-11 bits). Setting the ECCFn bit in a
PCA0CPMn register enables the module's CCFn interrupt.
PCA Counter/Timer 8, 9,
PCA Counter/Timer 16-
10 or 11-bit Overflow
Capture triggered by positive edge on CEXn
Capture triggered by negative edge on CEXn
Capture triggered by any transition on CEXn
Table 33.2. PCA0CPM and PCA0PWM Bit Settings for PCA Capture/Compare Modules
bit Overflow
W
P
M
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
(CCF0)
(CCF1)
(CCF2)
(CCF3)
(CCF4)
(CCF5)
n
C
A
P
N
n
M
A
T
n
O
G
T
n
W
M
P
n
E
C
C
Operational Mode
F
n
C
F
C
R
PCA0CN
C
C
F
5
C
C
F
4
C
C
F
3
Figure 33.3. 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
W
D
T
E
PCA0MD
W
D
C
K
L
C
P
S
2
C
P
S
1
0
1
0
1
0
1
0
1
0
1
0
1
C
P
S
0
Bit Number 7 6 5 4 3 2 1 0 7 6 5
E
C
F
0
1
Rev. 0.5
A
R
S
E
L
C
O
V
PCA0PWM
F
C
O
E
V
X X 1 0 0 0 0 A 0 X B XXX
X X 0 1 0 0 0 A 0 X B XXX
X X 1 1 0 0 0 A 0 X B XXX
0
1
C
S
E
L
L
1
C
L
S
E
L
0
PCA0CPMn
Set 8, 9, 10, or 11 bit Operation
EPCA0
C8051F96x
0
1
PCA0PWM
EA
4–2
0
1
1–0
XX
XX
XX
Interrupt
Priority
Decoder
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