C8051F581-IMR Silicon Labs, C8051F581-IMR Datasheet - Page 194

• Manufacturer Part Number: C8051F581-IMR
• Description: 8-bit Microcontrollers - MCU 50MIPS 128kB 8kB SPI
• Manufacturer: Silicon Labs

Specifications of C8051F581-IMR

• Rohs: yes
• Core: 8051
• Processor Series: C8051
• Data Bus Width: 8 bit

C8051F58x/F59x
SFR Definition 20.1. XBR0: Port I/O Crossbar Register 0
SFR Address = 0xE1; SFR Page = 0x0F
194
Name
Reset
Bit
Type
7
6
5
4
3
2
1
0
Bit
SMB0E
CAN0E
CP1AE
CP0AE
URT0E
SPI0E
Name
CP1E
CP0E
CP1AE
R/W
7
0
Comparator1 Asynchronous Output Enable.
0: Asynchronous CP1 unavailable at Port pin.
1: Asynchronous CP1 routed to Port pin.
Comparator1 Output Enable.
0: CP1 unavailable at Port pin.
1: CP1 routed to Port pin.
Comparator0 Asynchronous Output Enable.
0: Asynchronous CP0 unavailable at Port pin.
1: Asynchronous CP0 routed to Port pin.
Comparator0 Output Enable.
0: CP0 unavailable at Port pin.
1: CP0 routed to Port pin.
SMBus I/O Enable.
0: SMBus I/O unavailable at Port pins.
1: SMBus I/O routed to Port pins.
SPI I/O Enable.
0: SPI I/O unavailable at Port pins.
1: SPI I/O routed to Port pins. Note that the SPI can be assigned either 3 or 4 GPIO
pins.
CAN I/O Output Enable.
0: CAN I/O unavailable at Port pins.
1: CAN_TX, CAN_RX routed to Port pins P0.6 and P0.7.
UART0 I/O Output Enable.
0: UART0 I/O unavailable at Port pin.
1: UART0 TX0, RX0 routed to Port pins P0.4 and P0.5.
CP1E
R/W
6
0
CP0AE
R/W
5
0
CP0E
R/W
Rev. 1.2
4
0
Function
SMB0E
R/W
3
0
SPI0E
R/W
2
0
CAN0E
R/W
1
0
URT0E
R/W
0
0