C8051F005 Silicon Laboratories Inc, C8051F005 Datasheet - Page 140

• Manufacturer Part Number: C8051F005
• Description: IC 8051 MCU 32K FLASH 64TQFP
• Manufacturer: Silicon Laboratories Inc
• Series: C8051F00xr

Specifications of C8051F005

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 25MHz
• Connectivity: SMBus (2-Wire/I²C), SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
• Number Of I /o: 32
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 2.25K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 3.6 V
• Data Converters: A/D 8x12b, D/A 2x12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-TQFP, 64-VQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

19.1.3. 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 count 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
Crossbar
TR0
Crossbar
12
0
1
Figure 19.2. 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
/
Rev. 1.7
M
T
1
1
TMOD
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
C8051F000/1/2/5/6/7
C8051F010/1/2/5/6/7
Reload
TR1
TR0
TF1
TF0
IE1
IE0
IT1
IT0
Interrupt
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