C8051F020 Silicon Laboratories Inc, C8051F020 Datasheet - Page 112
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C8051F020
Manufacturer Part Number
C8051F020
Description
IC 8051 MCU 64K FLASH 100TQFP
Manufacturer
Silicon Laboratories Inc
Series
C8051F02xr
Specifications of C8051F020
Core Processor
8051
Core Size
8-Bit
Speed
25MHz
Connectivity
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 8x8b, 8x12b; D/A 2x12b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
100-TQFP, 100-VQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
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C8051F020/1/2/3
112
SFRs are listed in alphabetical order. All undefined SFR locations are reserved.
Register
SPI0CFG
SPI0CKR
SPI0CN
SPI0DAT
T2CON
T4CON
TCON
TH0
TH1
TH2
TH4
TL0
TL1
TL2
TL4
TMOD
TMR3CN
TMR3H
TMR3L
TMR3RLH
TMR3RLL
WDTCN
XBR0
XBR1
XBR2
0x97, 0xA2, 0xB3, 0xB4,
0xCE, 0xDF
* Refers to a register in the C8051F020/1 only.
** Refers to a register in the C8051F022/3 only.
† Refers to a register in the C8051F020/2 only.
†† Refers to a register in the C8051F021/3 only.
Address
0xCD
0xCC
0x9A
0x9D
0x9B
0xC8
0xC9
0x8C
0x8D
0x8A
0x8B
0xF8
0xF5
0xF4
0xFF
0xE1
0xE2
0xE3
0x88
0x89
0x91
0x95
0x94
0x93
0x92
Table 12.3. Special Function Registers
Description
SPI Configuration
SPI Clock Rate Control
SPI Control
SPI Data
Timer/Counter 2 Control
Timer/Counter 4 Control
Timer/Counter Control
Timer/Counter 0 High
Timer/Counter 1 High
Timer/Counter 2 High
Timer/Counter 4 High
Timer/Counter 0 Low
Timer/Counter 1 Low
Timer/Counter 2 Low
Timer/Counter 4 Low
Timer/Counter Mode
Timer 3 Control
Timer 3 High
Timer 3 Low
Timer 3 Reload High
Timer 3 Reload Low
Watchdog Timer Control
Port I/O Crossbar Control 0
Port I/O Crossbar Control 1
Port I/O Crossbar Control 2
Reserved
Rev. 1.4
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