C8051F122 Silicon Laboratories Inc, C8051F122 Datasheet - Page 108

• Manufacturer Part Number: C8051F122
• Description: IC 8051 MCU FLASH 128K 100TQFP
• Manufacturer: Silicon Laboratories Inc
• Series: C8051F12xr

Specifications of C8051F122

• 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: 64
• 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, 8x10b; 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: -

C8051F120/1/2/3/4/5/6/7
C8051F130/1/2/3
108
Bit7:
Bits6–5: UNUSED. Read = 00b; Write = don’t care.
Bits4–3: DAC0MD1–0: DAC0 Mode Bits.
Bits2–0: DAC0DF2–0: DAC0 Data Format Bits:
DAC0EN
MSB
R/W
Bit7
MSB
DAC0EN: DAC0 Enable Bit.
0: DAC0 Disabled. DAC0 Output pin is disabled; DAC0 is in low-power shutdown mode.
1: DAC0 Enabled. DAC0 Output pin is active; DAC0 is operational.
00: DAC output updates occur on a write to DAC0H.
01: DAC output updates occur on Timer 3 overflow.
10: DAC output updates occur on Timer 4 overflow.
11: DAC output updates occur on Timer 2 overflow.
000:
001:
010:
011:
1xx:
MSB
R/W
Bit6
-
The most significant nibble of the DAC0 Data Word is in DAC0H[3:0], while the least
significant byte is in DAC0L.
The most significant 5-bits of the DAC0 Data Word is in DAC0H[4:0], while the least
significant 7-bits are in DAC0L[7:1].
The most significant 6-bits of the DAC0 Data Word is in DAC0H[5:0], while the least
significant 6-bits are in DAC0L[7:2].
The most significant 7-bits of the DAC0 Data Word is in DAC0H[6:0], while the least
significant 5-bits are in DAC0L[7:3].
The most significant 8-bits of the DAC0 Data Word is in DAC0H[7:0], while the least
significant 4-bits are in DAC0L[7:4].
MSB
DAC0H
DAC0H
DAC0H
DAC0H
DAC0H
SFR Definition 8.3. DAC0CN: DAC0 Control
R/W
MSB
Bit5
-
DAC0MD1 DAC0MD0 DAC0DF2 DAC0DF1 DAC0DF0 00000000
R/W
Bit4
Rev. 1.4
R/W
Bit3
R/W
Bit2
LSB
R/W
Bit1
DAC0L
DAC0L
DAC0L
DAC0L
DAC0L
LSB
SFR Address:
SFR Page:
R/W
Bit0
LSB
LSB
0xD4
0
Reset Value
LSB