C8051F38B-GMR View Datasheet(PDF) - Silicon Laboratories

Part Name

Description

Manufacturer

C8051F38B-GMR

Full Speed USB Flash MCU Family

Silicon Laboratories 

C8051F380/1/2/3/4/5/6/7/C

Port

P0

P1

P2

P3

Pin Number 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

32-pin

Special

Function

Signals

Unavailable on 32-pin

packages

48-pin

Special

Function

Signals

TX0

RX0

SCK

MISO

MOSI

NSS*

SDA

SCL

If a pin is skipped, it is not available for assignment, and the

crossbar will move the assignment to the next available pin

CP0

CP0A

CP1

CP1A

SYSCLK

CEX0

CEX1

CEX2

CEX3

CEX4

ECI

T0

T1

TX1

RX1

SDA1

SCL1

Pin Skip 0 0 1 1 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

Settings

P0SKIP

P1SKIP

P2SKIP

P3SKIP

This example shows a crossbar configuration with XBR0 = 0x07 and XBR1 = 0x43.

These boxes represent Port pins which are assigned to a peripheral.

Figure 20.5. Crossbar Priority Decoder in Example Configuration (3 Pins Skipped)

Rev. 1.4

157

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