c8051t623-g Silicon Laboratories, c8051t623-g Datasheet - Page 220

• Manufacturer Part Number: c8051t623-g
• Description: Full Speed Usb Eprom Mcu Family
• Manufacturer: Silicon Laboratories

24.3. 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 24.2 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
bit Overflow
W
M
P
1
6
n
PCA Module 0
PCA Module 1
PCA Module 2
(for n = 0 to 4)
PCA0CPMn
E
C
O
M
n
C
A
P
P
(CCF0)
(CCF1)
(CCF2)
n
C
A
P
N
n
M
A
T
n
T
O
G
n
W
M
P
n
E
C
C
F
n
C
F
C
R
PCA0CN
Figure 24.3. PCA Interrupt Block Diagram
C
C
F
2
C
C
F
1
C
C
F
0
ECCF0
ECCF1
ECCF2
C
D
L
I
W
D
T
E
PCA0MD
W
D
L
C
K
C
P
S
2
C8051T622/3 and C8051T326/7
C
P
S
1
0
1
0
1
0
1
C
P
S
0
C
E
F
0
1
Rev. 1.1
A
R
S
E
L
O
PCA0PWM
E
C
V
O
C
V
F
0
1
C
S
E
L
L
1
C
L
S
E
L
0
Set 8, 9, 10, or 11 bit Operation
EPCA0
0
1
EA
0
1
Interrupt
Priority
Decoder
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