C8051F020 查看數據表（PDF） - Silicon Laboratories

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C8051F020

8K ISP FLASH MCU Family

Silicon Laboratories 

C8051F020/1/2/3

Figure 17.8. XBR1: Port I/O Crossbar Register 1

R/W

R/W

R/W

R/W

R/W

R/W

R/W

SYSCKE T2EXE

T2E

INT1E

T1E

INT0E

T0E

Bit7

Bit6

Bit5

Bit4

Bit3

Bit2

Bit1

Bit7:

Bit6:

Bit5:

Bit4:

Bit3:

Bit2:

Bit1:

Bit0:

SYSCKE: /SYSCLK Output Enable Bit.

0: /SYSCLK unavailable at Port pin.

1: /SYSCLK routed to Port pin.

T2EXE: T2EX Input Enable Bit.

0: T2EX unavailable at Port pin.

1: T2EX routed to Port pin.

T2E: T2 Input Enable Bit.

0: T2 unavailable at Port pin.

1: T2 routed to Port pin.

INT1E: /INT1 Input Enable Bit.

0: /INT1 unavailable at Port pin.

1: /INT1 routed to Port pin.

T1E: T1 Input Enable Bit.

0: T1 unavailable at Port pin.

1: T1 routed to Port pin.

INT0E: /INT0 Input Enable Bit.

0: /INT0 unavailable at Port pin.

1: /INT1 routed to Port pin.

T0E: T0 Input Enable Bit.

0: T0 unavailable at Port pin.

1: T0 routed to Port pin.

CP1E: CP1 Output Enable Bit.

0: CP1 unavailable at Port pin.

1: CP1 routed to Port pin.

R/W

CP1E

Bit0

Reset Value

00000000

SFR Address:

0xE2

Rev. 1.4

171

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