C8051F320 Silicon Laboratories Inc, C8051F320 Datasheet - Page 139
C8051F320
Manufacturer Part Number
C8051F320
Description
IC 8051 MCU 16K FLASH 32LQFP
Manufacturer
Silicon Laboratories Inc
Series
C8051F32xr
Datasheet
1.C8051F320R.pdf
(256 pages)
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
-
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Bits7-0:
Note: P2.7-P2.4 only available on C8051F320 devices. Writes to these Ports do not require XBARE = ‘1’.
Bits7-0:
Note: P2.7-P2.4 only available on C8051F320 devices.
P2.7
R/W
R/W
Bit7
Bit7
P2.[7:0]
Write - Output appears on I/O pins per Crossbar Registers (when XBARE = ‘1’).
0: Logic Low Output.
1: Logic High Output (high impedance if corresponding P2MDOUT.n bit = 0).
Read - Always reads ‘0’ if selected as analog input in register P2MDIN. Directly reads Port pin when
configured as digital input.
0: P2.n pin is logic low.
1: P2.n pin is logic high.
Analog Input Configuration Bits for P2.7-P2.0 (respectively).
Port pins configured as analog inputs have their weak pull-up, digital driver, and digital receiver dis-
abled.
0: Corresponding P2.n pin is configured as an analog input.
1: Corresponding P2.n pin is not configured as an analog input.
P2.6
R/W
R/W
Bit6
Bit6
Figure 14.16. P2MDIN: Port2 Input Mode Register
P2.5
R/W
R/W
Bit5
Bit5
Figure 14.15. P2: Port2 Register
P2.4
R/W
R/W
Bit4
Bit4
P2.3
R/W
R/W
Bit3
Bit3
Rev. 1.1
P2.2
R/W
R/W
Bit2
Bit2
P2.1
R/W
R/W
Bit1
Bit1
C8051F320/1
(bit addressable)
P2.0
R/W
R/W
Bit0
Bit0
SFR Address:
SFR Address:
Reset Value
Reset Value
11111111
11111111
0xA0
0xF3
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