C8051F040-TB Silicon Laboratories Inc, C8051F040-TB Datasheet - Page 219
C8051F040-TB
Manufacturer Part Number
C8051F040-TB
Description
BOARD PROTOTYPING W/C8051F040
Manufacturer
Silicon Laboratories Inc
Type
MCUr
Specifications of C8051F040-TB
Contents
Board
Processor To Be Evaluated
C8051F04x
Interface Type
USB
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
For Use With/related Products
C8051F040
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
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Bits7-0:
Note:
Bits7-0:
Note:
P3.7
R/W
R/W
Bit7
Bit7
P2MDOUT.[7:0]: Port2 Output Mode Bits.
0: Port Pin output mode is configured as Open-Drain.
1: Port Pin output mode is configured as Push-Pull.
SDA, SCL, and RX0 (when UART0 is in Mode 0) and RX1 (when UART1 is in Mode 0) are
always configured as Open-Drain when they appear on Port pins.
P3.[7:0]: Port3 Output Latch Bits.
(Write - Output appears on I/O pins per XBR0, XBR1, XBR2, and XBR3 Registers)
0: Logic Low Output.
1: Logic High Output (open if corresponding P3MDOUT.n bit = 0).
(Read - Regardless of XBR0, XBR1, XBR2, and XBR3 Register settings).
0: P3.n pin is logic low.
1: P3.n pin is logic high.
P3.[7:0] can be driven by the External Data Memory Interface (as AD[7:0] in Multiplexed
mode, or as D[7:0] in Non-multiplexed mode). See
Interface and On-Chip XRAM” on page 187
ory Interface.
P3.6
R/W
R/W
Bit6
Bit6
SFR Definition 17.12. P2MDOUT: Port2 Output Mode
P3.5
R/W
R/W
Bit5
Bit5
SFR Definition 17.13. P3: Port3 Data
P3.4
R/W
R/W
Bit4
Bit4
Rev. 1.5
P3.3
R/W
R/W
Bit3
Bit3
C8051F040/1/2/3/4/5/6/7
for more information about the External Mem-
P3.2
R/W
R/W
Bit2
Bit2
Section “16. External Data Memory
P3.1
R/W
R/W
Bit1
Bit1
SFR Address:
SFR Address:
SFR Page:
SFR Page:
P3.0
R/W
Bit0
R/W
Bit0
0xA6
F
00000000
0xB0
All Pages
Reset Value
Addressable
Reset Value
11111111
Bit
219
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