BCM20730 Data Sheet
Pin Descriptions
a
Table 8: GPIO Pin Descriptions (Cont.)
Pin Number
32-Pin 40-pin 64-pin
Default
After
Power
Domain Alternate Function Description
QFN
QFN
BGA
Pin Name Direction POR
–
–
C3
P37
P38
Input
Input
Floating VDDO
• GPIO: P37
• A/D converter input
• Quadrature: QDZ1
• SPI_2: MISO (slave only)
• Auxiliary clock output: ACLK1
30
–
–
B3
A3
Floating VDDO
Floating VDDO
• GPIO: P38
• A/D converter input
• SPI_2: MOSI (master and slave)
• IR_TX
• XTALO32K (64-BGA only)
Alternative Function:
• P14 in 32-QFN only
–
P39
Input
• GPIO: P39
• SPI_2: SPI_CS (slave only)
• SPI_1: MISO (master only)
• Infrared control: IR_RX
• External PA ramp control: PA_Ramp
• XTALI32K (64-BGA only)
• 60Hz_main
a. During Power-On Reset, all inputs are disabled.
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September 9, 2013 • 20730-DS108-R
Page 38
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