C8051T606DK Silicon Laboratories Inc, C8051T606DK Datasheet - Page 165

• Manufacturer Part Number: C8051T606DK
• Description: KIT DEVELOPMENT FOR C8051T606
• Manufacturer: Silicon Laboratories Inc
• Type: MCUr

Specifications of C8051T606DK

• Contents: Board, Adapter, Cable, CD, Power Supply
• Processor To Be Evaluated: C8051T606x
• Interface Type: RS-232, USB
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Operating Supply Voltage: 3.3 V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: C8051T606
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 336-1666

26.3.2. Software Timer (Compare) Mode
In Software Timer mode, the PCA counter/timer value is compared to the module's 16-bit Capture/Com-
pare register (PCA0CPHn and PCA0CPLn). When a match occurs, the Capture/Compare Flag (CCFn) in
PCA0CN is set to logic 1. An interrupt request is generated if the CCFn interrupt for that module is
enabled. The CCFn bit is not automatically cleared by hardware when the CPU vectors to the interrupt ser-
vice routine, and must be cleared by software. Setting the ECOMn and MATn bits in the PCA0CPMn regis-
ter enables Software Timer mode.
Important Note about Capture/Compare Registers: When writing a 16-bit value to the PCA0 Cap-
ture/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.
PCA0CPLn
Write to
Reset
PCA0CPHn
Write to
0
ENB
ENB
1
Figure 26.5. PCA Software Timer Mode Diagram
W
M
P
1
6
n
x
E
C
O
M
n
PCA0CPMn
C
A
P
P
n
0 0
C
A
P
N
n
M
A
T
n
O
G
T
n
0 0
P
W
M
n
C
C
E
F
n
x
Enable
PCA
Timebase
Rev. 1.2
PCA0CPLn
PCA0L
16-bit Comparator
C8051T600/1/2/3/4/5/6
PCA0CPHn
PCA0H
Match
C
F
C
R
PCA0CN
0
1
C
C
F
2
C
C
F
1
C
C
F
0
PCA Interrupt
165