C8051F320 Silicon Laboratories Inc, C8051F320 Datasheet - Page 84

• Manufacturer Part Number: C8051F320
• Description: IC 8051 MCU 16K FLASH 32LQFP
• Manufacturer: Silicon Laboratories Inc
• Series: C8051F32xr

Specifications of C8051F320

• 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: 25
• 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 17x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 32-LQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

C8051F320/1
9.2.7. Register Descriptions
Following are descriptions of SFRs related to the operation of the CIP-51 System Controller. Reserved bits should not
be set to logic l. Future product versions may use these bits to implement new features in which case the reset value
of the bit will be logic 0, selecting the feature's default state. Detailed descriptions of the remaining SFRs are included
in the sections of the datasheet associated with their corresponding system function.
84
Register
VDM0CN
XBR0
XBR1
0x84-0x86, 0xAB-0xAF, 0xB4,
0xB5, 0xBF, 0xC7, 0xCE,
0xCF, 0xD2, 0xD3, 0xDF,
0xE3, 0xE5, 0xF5
Bits7-0:
Bits7-0:
R/W
R/W
Bit7
Bit7
DPL: Data Pointer Low.
The DPL register is the low byte of the 16-bit DPTR. DPTR is used to access indirectly addressed
memory.
DPH: Data Pointer High.
The DPH register is the high byte of the 16-bit DPTR. DPTR is used to access indirectly addressed
memory.
R/W
R/W
Bit6
Bit6
Address
0xFF
0xE1
0xE2
R/W
R/W
Bit5
Bit5
Figure 9.4. DPH: Data Pointer High Byte
Figure 9.3. DPL: Data Pointer Low Byte
Description
VDD Monitor Control
Port I/O Crossbar Control 0
Port I/O Crossbar Control 1
Reserved
Table 9.3. Special Function Registers
R/W
R/W
Bit4
Bit4
Rev. 1.1
R/W
R/W
Bit3
Bit3
R/W
R/W
Bit2
Bit2
R/W
R/W
Bit1
Bit1
R/W
R/W
Bit0
Bit0
SFR Address:
SFR Address:
00000000
00000000
Reset Value
Reset Value
0x82
0x83
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