C8051F121 Silicon Laboratories Inc, C8051F121 Datasheet - Page 7
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C8051F121
Manufacturer Part Number
C8051F121
Description
IC 8051 MCU FLASH 128K 64TQFP
Manufacturer
Silicon Laboratories Inc
Series
C8051F12xr
Specifications of C8051F121
Core Processor
8051
Core Size
8-Bit
Speed
100MHz
Connectivity
EBI/EMI, 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
128KB (128K x 8)
Program Memory Type
FLASH
Ram Size
8.25K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 3.6 V
Data Converters
A/D 8x8b, 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
-
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Part Number:
C8051F121
Manufacturer:
Silicon Laboratories Inc
Quantity:
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Part Number:
C8051F121-GQ
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21. UART0.................................................................................................................... 287
22. UART1.................................................................................................................... 299
23. Timers.................................................................................................................... 309
24. Programmable Counter Array ............................................................................. 325
20.2.SPI0 Master Mode Operation ......................................................................... 275
20.3.SPI0 Slave Mode Operation ........................................................................... 277
20.4.SPI0 Interrupt Sources ................................................................................... 277
20.5.Serial Clock Timing......................................................................................... 278
20.6.SPI Special Function Registers ...................................................................... 280
21.1.UART0 Operational Modes ............................................................................ 288
21.2.Multiprocessor Communications .................................................................... 293
21.3.Frame and Transmission Error Detection....................................................... 294
22.1.Enhanced Baud Rate Generation................................................................... 300
22.2.Operational Modes ......................................................................................... 301
22.3.Multiprocessor Communications .................................................................... 303
23.1.Timer 0 and Timer 1 ....................................................................................... 309
23.2.Timer 2, Timer 3, and Timer 4 ........................................................................ 317
24.1.PCA Counter/Timer ........................................................................................ 326
24.2.Capture/Compare Modules ............................................................................ 328
24.3.Register Descriptions for PCA0...................................................................... 335
21.1.1.Mode 0: Synchronous Mode .................................................................. 288
21.1.2.Mode 1: 8-Bit UART, Variable Baud Rate.............................................. 289
21.1.3.Mode 2: 9-Bit UART, Fixed Baud Rate .................................................. 291
21.1.4.Mode 3: 9-Bit UART, Variable Baud Rate.............................................. 292
21.2.1.Configuration of a Masked Address ....................................................... 293
21.2.2.Broadcast Addressing ............................................................................ 293
22.2.1.8-Bit UART ............................................................................................. 301
22.2.2.9-Bit UART ............................................................................................. 302
23.1.1.Mode 0: 13-bit Counter/Timer ................................................................ 309
23.1.2.Mode 1: 16-bit Counter/Timer ................................................................ 311
23.1.3.Mode 2: 8-bit Counter/Timer with Auto-Reload...................................... 311
23.1.4.Mode 3: Two 8-bit Counter/Timers (Timer 0 Only)................................. 312
23.2.1.Configuring Timer 2, 3, and 4 to Count Down........................................ 317
23.2.2.Capture Mode ........................................................................................ 318
23.2.3.Auto-Reload Mode ................................................................................. 319
23.2.4.Toggle Output Mode (Timer 2 and Timer 4 Only) .................................. 320
24.2.1.Edge-triggered Capture Mode................................................................ 329
24.2.2.Software Timer (Compare) Mode........................................................... 330
24.2.3.High Speed Output Mode....................................................................... 331
24.2.4.Frequency Output Mode ........................................................................ 332
24.2.5.8-Bit Pulse Width Modulator Mode......................................................... 333
24.2.6.16-Bit Pulse Width Modulator Mode....................................................... 334
Rev. 1.4
C8051F120/1/2/3/4/5/6/7
C8051F130/1/2/3
7
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