C8051F040DK Silicon Laboratories Inc, C8051F040DK Datasheet - Page 310

• Manufacturer Part Number: C8051F040DK
• Description: DEV KIT FOR F040/F041/F042/F043
• Manufacturer: Silicon Laboratories Inc
• Type: MCUr

Specifications of C8051F040DK

• Contents: Evaluation Board, Power Supply, USB Cables, Adapter and Documentation
• Processor To Be Evaluated: C8051F04x
• Interface Type: USB
• Silicon Manufacturer: Silicon Labs
• Core Architecture: 8051
• Silicon Core Number: C8051F040
• Silicon Family Name: C8051F04x
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• For Use With/related Products: Silicon Laboratories C8051 F040, 041, 042, 043 MCUs
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 336-1205

C8051F040/1/2/3/4/5/6/7
24.2.3. High-Speed Output Mode
In High-Speed Output mode, a module’s associated CEXn pin is toggled each time a match occurs
between the PCA Counter and the module's 16-bit capture/compare register (PCA0CPHn and
PCA0CPLn). Setting the TOGn, MATn, and ECOMn bits in the PCA0CPMn register enables the High-
Speed Output mode.
Important Note About Capture/Compare Registers: When writing a 16-bit value to the PCA0 Capture/
Compare registers, the low byte should always be written first. Writing to PCA0CPLn clears the ECOMn bit
to '0'; writing to PCA0CPHn sets ECOMn to '1'.
308
PCA0CPLn
Write to
Reset
PCA0CPHn
Write to
Figure 24.6. PCA High-Speed Output Mode Diagram
0
ENB
ENB
1
PCA
Timebase
Enable
W
M
P
1
6
n
x
E
C
O
M
PCA0CPLn
n
PCA0CPMn
C
A
P
P
n
0 0
PCA0L
C
A
P
N
n
16-bit Comparator
M
A
T
n
O
G
T
n
W
M
P
0 x
n
E
C
C
F
n
PCA0CPHn
PCA0H
Rev. 1.5
Match
Toggle
C
F
C
R
TOGn
0
1
PCA0CN
C
C
F
5
C
C
F
4
0
1
C
C
F
3
CEXn
C
C
F
2
PCA
Interrupt
C
C
F
1
C
C
F
0
Crossbar
Port I/O