C8051F015DK Silicon Laboratories Inc, C8051F015DK Datasheet - Page 108
![MCU, MPU & DSP Development Tools Dev Kit for F015-19](/photos/15/91/159152/c8051f005dk_sml.jpg)
C8051F015DK
Manufacturer Part Number
C8051F015DK
Description
MCU, MPU & DSP Development Tools Dev Kit for F015-19
Manufacturer
Silicon Laboratories Inc
Datasheet
1.C8051F005-TB.pdf
(171 pages)
Specifications of C8051F015DK
Processor To Be Evaluated
C8051F01x
Interface Type
USB
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
- Current page: 108 of 171
- Download datasheet (2Mb)
WEAKPUD
Bit7:
Bit6:
Bits5-1: UNUSED. Read = 00000b, Write = don’t care.
Bit0:
Example Usage of XBR0, XBR1, XBR2:
When selected, the digital resources fill the Port I/O pins in order (top to bottom as shown in
Table 15.1) starting with P0.0 through P0.7, and then P1.0 through P1.7, and finally P2.0
through P2.7. If the digital resources are not mapped to the Port I/O pins, they default to their
matching internal Port Register bits.
Example1: If XBR0 = 0x11, XBR1 = 0x00, and XBR2 = 0x40:
P0.0=SDA, P0.1=SCL, P0.2=CEX0, P0.3=CEX1, P0.4 … P2.7 map to corresponding Port I/O.
Example2: If XBR0 = 0x80, XBR1 = 0x04, and XBR2 = 0x41:
P0.0=CP0, P0.1=/INT0, P0.2 = CNVSTR, P0.3 … P2.7 map to corresponding Port I/O.
R/W
Bit7
0: Weak Pull-ups Enabled (except for Ports whose I/O are configured as push-pull)
1: Weak Pull-ups Disabled
0: Crossbar Disabled
1: Crossbar Enabled
CNVSTE: ADC Convert Start Input Enable Bit
0: CNVSTR unavailable at Port pin.
1: CNVSTR routed to Port Pin.
WEAKPUD: Port I/O Weak Pull-up Disable Bit
XBARE: Crossbar Enable Bit
XBARE
R/W
Bit6
Figure 15.5. XBR2: Port I/O CrossBar Register 2
R/W
Bit5
-
R/W
Bit4
-
Rev. 1.7
R/W
Bit3
-
R/W
Bit2
-
C8051F000/1/2/5/6/7
C8051F010/1/2/5/6/7
R/W
Bit1
-
CNVSTE
R/W
Bit0
SFR Address:
Reset Value
00000000
0xE3
108
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