SI4010-C2-GS View Datasheet(PDF) - Silicon Laboratories

Part Name

Description

Manufacturer

SI4010-C2-GS

CRYSTAL-LESS SOC RF TRANSMITTER

Silicon Laboratories 

Si4010-C2

Table 30.4. GPIO Special Roles Control and Order

GPIO Roles Order

Control

Comment

0

VPP

1

NVM programming voltage

VPP = 6.5 V

XO

2 XO_CTRL.XO_ENA

GPIO

3 P0.0 fixed as input only

1

GPIO

1 P0.1

P0CON.1

Matrix, Roff Ind* PORT_CTRL

2

GPIO

1 P0.2

P0CON.2

Matrix, Roff Ind* PORT_CTRL

3 Reference 1 PORT_SET.PORT_REFEN

clk_ref

GPIO

2 P0.3

P0CON.3

Matrix Ind* PORT_CTRL

Reference interval clock for frequency

counter

4

C2DAT

1 Automatically “stolen” from application

during C2 transaction.

Output

clk_out

2 PORT_SET.PORT_CLKEN

PORT_SET.PORT_CLKOUT[0]

Cannot be used in the development

system, since C2 transaction disrupts

the output.

GPIO

3 P0.4

P0CON.4

5

C2CLK

1 Acts as if a C2 debug clock input of

the LED driver is not turned on.

LED driver 2 P0.5

PORT_CTRL.PORT_LED[1:0]

6

Output

1 PORT_SET.PORT_CLKEN

clk_out

PORT_SET.PORT_CLKOUT[1]

GPIO

2 P0.6

P0CON.6

7

GPIO

1 P0.7

P0CON.7

8

GPIO

1 P1.0

P1CON.0

9

GPIO

1 P1.1

P1CON.1

Port forced as output. To read the

actual LED driver status (on/off) the

user should read

RBIT_DATA.GPIO_LED_DRIVE

14 pin only

14 pin only

14 pin only

14 pin only

*Note: Ind stands for “Independent” setting. The Matrix and Roff modes are controlled in analog pad circuitry.

116

Rev. 1.0

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