C8051F226DK Silicon Laboratories Inc, C8051F226DK Datasheet - Page 127

• Manufacturer Part Number: C8051F226DK
• Description: DEV KIT F220/221/226/230/231/236
• Manufacturer: Silicon Laboratories Inc
• Type: MCUr

Specifications of C8051F226DK

• Contents: Evaluation Board, Power Supply, USB Cables, Adapter and Documentation
• Processor To Be Evaluated: C8051F22x and C8051F23x
• Interface Type: USB
• Silicon Manufacturer: Silicon Labs
• Core Architecture: 8051
• Silicon Core Number: C8051F226
• Silicon Family Name: C8051F2xx
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• For Use With/related Products: C8051F220, 221, 226, 230, 231, 236
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 336-1241

17.1.3. Mode 2: 8-bit Counter/Timer with Auto-Reload
Mode 2 configures Timer 0 and Timer 1 to operate as 8-bit counter/timers with automatic reload of the start
value. The TL0 holds the count and TH0 holds the reload value. When the counter in TL0 overflows from
all ones to 0x00, the timer overflow flag TF0 (TCON.5) is set and the counter in TL0 is reloaded from TH0.
If enabled, an interrupt will occur when the TF0 flag is set. The reload value in TH0 is not changed. TL0
must be initialized to the desired value before enabling the timer for the first count to be correct. When in
Mode 2, Timer 1 operates identically to Timer 0. Both counter/timers are enabled and configured in Mode
2 in the same manner as Mode 0.
SYSCLK
/INT0
T0
GATE0
TR0
PORT0
PORT0
MUX
MUX
12
0
1
Figure 17.2. T0 Mode 2 Block Diagram
CKCON
M
T
2
M
T
1
M
T
0
1
0
G
A
T
E
1
C
T
1
/
M
T
1
1
TMOD
Rev. 1.6
M
T
1
0
G
A
T
E
0
C
T
0
/
TCLK
M
T
0
1
M
T
0
0
(8 bits)
(8 bits)
TH0
TL0
Reload
C8051F2xx
TF1
TR1
TF0
TR0
IE1
IT1
IE0
IT0
Interrupt
127