C8051F321 Silicon Laboratories Inc, C8051F321 Datasheet - Page 229

• Manufacturer Part Number: C8051F321
• Description: IC 8051 MCU 16K FLASH 28MLP
• Manufacturer: Silicon Laboratories Inc
• Series: C8051F32xr

Specifications of C8051F321

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 25MHz
• Connectivity: SMBus (2-Wire/I²C), SPI, UART/USART, USB
• Peripherals: Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
• Number Of I /o: 21
• Program Memory Size: 16KB (16K 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 13x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 28-VQFN Exposed Pad, 28-HVQFN, 28-SQFN, 28-DHVQFN
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

Bits 7-0: TMR2RLL: Timer 2 Reload Register Low Byte.
Bits 7-0: TMR2RLH: Timer 2 Reload Register High Byte.
Bits 7-0: TMR2L: Timer 2 Low Byte.
Bits 7-0: TMR2H: Timer 2 High Byte.
R/W
R/W
R/W
R/W
Bit7
Bit7
Bit7
Bit7
TMR2RLL holds the low byte of the reload value for Timer 2 when operating in auto-reload mode, or
the captured value of the TMR2L register in capture mode.
The TMR2RLH holds the high byte of the reload value for Timer 2 when operating in auto-reload
mode, or the captured value of the TMR2H register in capture mode.
In 16-bit mode, the TMR2L register contains the low byte of the 16-bit Timer 2. In 8-bit mode,
TMR2L contains the 8-bit low byte timer value.
In 16-bit mode, the TMR2H register contains the high byte of the 16-bit Timer 2. In 8-bit mode,
TMR2H contains the 8-bit high byte timer value.
Figure 19.17. TMR2RLH: Timer 2 Reload Register High Byte
R/W
R/W
R/W
R/W
Figure 19.16. TMR2RLL: Timer 2 Reload Register Low Byte
Bit6
Bit6
Bit6
Bit6
R/W
R/W
R/W
R/W
Bit5
Bit5
Bit5
Bit5
Figure 19.18. TMR2L: Timer 2 Low Byte
Figure 19.19. TMR2H Timer 2 High Byte
R/W
R/W
R/W
R/W
Bit4
Bit4
Bit4
Bit4
R/W
R/W
R/W
R/W
Bit3
Bit3
Bit3
Bit3
Rev. 1.1
R/W
R/W
R/W
R/W
Bit2
Bit2
Bit2
Bit2
R/W
R/W
R/W
R/W
Bit1
Bit1
Bit1
Bit1
C8051F320/1
R/W
R/W
R/W
R/W
Bit0
Bit0
Bit0
Bit0
SFR Address:
SFR Address:
SFR Address:
SFR Address:
00000000
00000000
00000000
00000000
Reset Value
Reset Value
Reset Value
Reset Value
0xCA
0xCD
0xCB
0xCC
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