C8051F342 查看數據表（PDF） - Silicon Laboratories

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C8051F342

Full Speed USB Flash MCU Family

Silicon Laboratories 

C8051F340/1/2/3/4/5/6/7/8/9/A/B/C/D

SFR Definition 15.1. XBR0: Port I/O Crossbar Register 0

R/W

CP1AE

Bit7

R/W

CP1E

Bit6

R/W

CP0AE

Bit5

R/W

CP0E

Bit4

R/W

SYSCKE

Bit3

R/W

SMB0E

Bit2

Bit7:

Bit6:

Bit5:

Bit4:

Bit3:

Bit2:

Bit1:

Bit0:

CP1AE: Comparator1 Asynchronous Output Enable

0: Asynchronous CP1 unavailable at Port pin.

1: Asynchronous CP1 routed to Port pin.

CP1E: Comparator1 Output Enable

0: CP1 unavailable at Port pin.

1: CP1 routed to Port pin.

CP0AE: Comparator0 Asynchronous Output Enable

0: Asynchronous CP0 unavailable at Port pin.

1: Asynchronous CP0 routed to Port pin.

CP0E: Comparator0 Output Enable

0: CP0 unavailable at Port pin.

1: CP0 routed to Port pin.

SYSCKE: /SYSCLK Output Enable

0: /SYSCLK unavailable at Port pin.

1: /SYSCLK output routed to Port pin.

SMB0E: SMBus I/O Enable

0: SMBus I/O unavailable at Port pins.

1: SMBus I/O routed to Port pins.

SPI0E: SPI I/O Enable

0: SPI I/O unavailable at Port pins.

1: SPI I/O routed to Port pins.

URT0E: UART0 I/O Output Enable

0: UART0 I/O unavailable at Port pins.

1: UART0 TX0, RX0 routed to Port pins P0.4 and P0.5.

R/W

SPI0E

Bit1

R/W

URT0E

Bit0

Reset Value

00000000

SFR Address:

0xE1

148

Rev. 1.3

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