C8051F321 Silicon Laboratories Inc, C8051F321 Datasheet - Page 234
C8051F321
Manufacturer Part Number
C8051F321
Description
IC 8051 MCU 16K FLASH 28MLP
Manufacturer
Silicon Laboratories Inc
Series
C8051F32xr
Datasheet
1.C8051F320R.pdf
(256 pages)
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
-
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234
Bits 7-0: TMR3RLL: Timer 3 Reload Register Low Byte.
Bits 7-0: TMR3RLH: Timer 3 Reload Register High Byte.
Bits 7-0: TMR3L: Timer 3 Low Byte.
Bits 7-0: TMR3H: Timer 3 High Byte.
R/W
R/W
R/W
R/W
Bit7
Bit7
Bit7
Bit7
TMR3RLL holds the low byte of the reload value for Timer 3 when operating in auto-reload mode, or
the captured value of the TMR3L register when operating in capture mode.
The TMR3RLH holds the high byte of the reload value for Timer 3 when operating in auto-reload
mode, or the captured value of the TMR3H register when operating in capture mode.
In 16-bit mode, the TMR3L register contains the low byte of the 16-bit Timer 3. In 8-bit mode,
TMR3L contains the 8-bit low byte timer value.
In 16-bit mode, the TMR3H register contains the high byte of the 16-bit Timer 3. In 8-bit mode,
TMR3H contains the 8-bit high byte timer value.
Figure 19.26. TMR3RLH: Timer 3 Reload Register High Byte
R/W
R/W
R/W
R/W
Figure 19.25. TMR3RLL: Timer 3 Reload Register Low Byte
Bit6
Bit6
Bit6
Bit6
R/W
R/W
R/W
R/W
Bit5
Bit5
Bit5
Bit5
Figure 19.27. TMR3L: Timer 3 Low Byte
Figure 19.28. TMR3H Timer 3 High Byte
R/W
R/W
R/W
R/W
Bit4
Bit4
Bit4
Bit4
Rev. 1.1
R/W
R/W
R/W
R/W
Bit3
Bit3
Bit3
Bit3
R/W
R/W
R/W
R/W
Bit2
Bit2
Bit2
Bit2
R/W
R/W
R/W
R/W
Bit1
Bit1
Bit1
Bit1
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
0x92
0x93
0x94
0x95
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