C8051F044-GQR Silicon Laboratories Inc, C8051F044-GQR Datasheet - Page 295

• Manufacturer Part Number: C8051F044-GQR
• Description: IC 8051 MCU 64K FLASH 100TQFP
• Manufacturer: Silicon Laboratories Inc
• Series: C8051F04xr

Specifications of C8051F044-GQR

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 25MHz
• Connectivity: CAN, EBI/EMI, SMBus (2-Wire/I²C), SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
• Number Of I /o: 64
• Program Memory Size: 64KB (64K x 8)
• Program Memory Type: FLASH
• Ram Size: 4.25K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 3.6 V
• Data Converters: A/D 13x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 100-TQFP, 100-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

Bits 7-0: TL0: Timer 0 Low Byte.
Bits7-5:
Bit4:
Bit3:
Bit2:
Bits1-0:
R/W
R/W
Bit7
Bit7
-
The TL0 register is the low byte of the 16-bit Timer 0.
UNUSED. Read = 000b, Write = don’t care.
T1M: Timer 1 Clock Select.
This select the clock source supplied to Timer 1. T1M is ignored when C/T1 is set to logic 1.
0: Timer 1 uses the clock defined by the prescale bits, SCA1-SCA0.
1: Timer 1 uses the system clock.
T0M: Timer 0 Clock Select.
This bit selects the clock source supplied to Timer 0. T0M is ignored when C/T0 is set to
logic 1.
0: Counter/Timer 0 uses the clock defined by the prescale bits, SCA1-SCA0.
1: Counter/Timer 0 uses the system clock.
UNUSED. Read = 0b, Write = don’t care.
SCA1-SCA0: Timer 0/1 Prescale Bits
These bits control the division of the clock supplied to Timer 0 and/or Timer 1 if configured
to use prescaled clock inputs.
SCA1
0
0
1
1
R/W
R/W
Bit6
Bit6
-
SCA0
SFR Definition 23.3. CKCON: Clock Control
SFR Definition 23.4. TL0: Timer 0 Low Byte
0
1
0
1
R/W
Bit5
R/W
Bit5
-
System clock divided by 12
System clock divided by 48
External clock divided by 8
System clock divided by 4
T1M
R/W
Bit4
R/W
Bit4
Prescaled Clock
Rev. 1.5
T0M
R/W
R/W
Bit3
Bit3
C8051F040/1/2/3/4/5/6/7
R/W
R/W
Bit2
Bit2
-
SCA1
R/W
R/W
Bit1
Bit1
SFR Address:
SFR Address:
SFR Page:
SCA0
SFR Page:
R/W
Bit0
R/W
Bit0
0x8A
0
0x8E
0
00000000
Reset Value
00000000
Reset Value
293