C8051F020 View Datasheet(PDF) - Silicon Laboratories

Part Name

Description

Manufacturer

C8051F020

8K ISP FLASH MCU Family

Silicon Laboratories 

C8051F020/1/2/3

Figure 17.5. Priority Crossbar Decode Table

(EMIFLE = 1; EMIF in Non-multiplexed Mode; P1MDIN = 0xFF)

P0

P1

P2

P3

Crossbar Register Bits

PIN I/O 0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 7

TX0

●

RX0

●

UART0EN: XBR0.2

SCK

●●

MISO

MOSI

●●

●●

SPI0EN: XBR0.1

NSS

●●

SDA

●●●

SCL

●●●

●

●

SMB0EN: XBR0.0

TX1

●●●

RX1

●●●

●●

●●●

UART1EN: XBR2.2

CEX0

●

●

●

● ●●●

CEX1

●●●

●●●●●

CEX2

●●

● ●●●●●

PCA0ME: XBR0.[5:3]

CEX3

●●

●●●●●●●

CEX4

●

● ●●●●●●●

ECI

●●●●●●

●●●●●●●●●●

ECI0E: XBR0.6

CP0

●●●●●●

●●●●●●●●●●●

CP0E: XBR0.7

CP1

●●●●●●

●●●●●●●●●●●●

CP1E: XBR1.0

T0

●●●●●●

●●●●●●●●●●●●●

T0E: XBR1.1

/INT0 ● ● ● ● ● ●

●●●●●●●●●●●●●●

INT0E: XBR1.2

T1

●●●●●●

●●●●●●●●●●●●●●●

T1E: XBR1.3

/INT1 ● ● ● ● ● ●

●●●●●●●●●●●●●●●●

INT1E: XBR1.4

T2

●●●●●●

●●●●●●●●●●●●●●●●●

T2E: XBR1.5

T2EX ● ● ● ● ● ●

●●●●●●●●●●●●●●●●●●

T2EXE: XBR1.6

T4

●●●●●●

●●●●●●●●●●●●●●●●●●●

T4E: XBR2.3

T4EX ● ● ● ● ● ●

●●●●●●●●●●●●●●●●●●●●

T4EXE: XBR2.4

/SYSCLK ● ● ● ● ● ●

●●●●●●●●●●●●●●●●●●●●●

SYSCKE: XBR1.7

CNVSTR ● ● ● ● ● ●

●●●●●●●●●●●●●●●●●●●●●●

CNVSTE: XBR2.0

AIN1 Inputs/Non-muxed Addr H Muxed Addr H/Non-muxed Addr L Muxed Data/Non-muxed Data

Rev. 1.4

167

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