c8051f544 Silicon Laboratories, c8051f544 Datasheet - Page 239

• Manufacturer Part Number: c8051f544
• Description: Mixed Signal Isp Flash Mcu Family
• Manufacturer: Silicon Laboratories

This mode allows software to determine the external oscillator frequency when an RC network or capacitor
is used to generate the clock source.
External Clock / 8
SYSCLK / 12
External Clock / 8
SYSCLK
Figure 23.6. Timer 2 External Oscillator Capture Mode Block Diagram
T2XCLK
0
1
T
M
H
3
M
T
3
L
CKCON
M
H
T
2
M
T
2
L
0
1
M
T
1
M
T
0
S
C
A
1
TF2CEN
S
C
A
0
TR2
Rev. 1.0
Capture
TCLK
TMR2RLL TMR2RLH
TMR2L
TMR2H
C8051F54x
T2SPLIT
TF2LEN
TF2CEN
T2XCLK
TF2H
TF2L
TR2
Interrupt
239