BCM20730 Data Sheet
Pin Descriptions
a
Table 8: GPIO Pin Descriptions
Pin Number
32-Pin 40-pin 64-pin
Default
After
Power
Domain Alternate Function Description
QFN
QFN
BGA
Pin Name Direction POR
19
21
F6
P0
Input
Floating VDDO
• GPIO: P0
• Keyboard scan input (row): KSI0
• A/D converter input
• Peripheral UART: puart_tx
• SPI_2: MOSI (master and slave)
• IR_RX
• 60 Hz_main
• Not available during TMC=1
20
22
22
24
G6
H8
P1
P2
Input
Input
Floating VDDO
Floating VDDO
• GPIO: P1
• Keyboard scan input (row): KSI1
• A/D converter input
• Peripheral UART: puart_rts
• SPI_2: MISO (master and slave)
• IR_TX
• GPIO: P2
• Keyboard scan input (row): KSI2
• Quadrature: QDX0
• Peripheral UART: puart_rx
• Triac control 2
• SPI_2: SPI_CS (slave only)
• SPI_2: SPI_MOSI (master only)
21
23
23
25
F8
P3
P4
Input
Input
Floating VDDO
Floating VDDO
• GPIO: P3
• Keyboard scan input (row): KSI3
• Quadrature: QDX1
• Peripheral UART: puart_cts
• SPI_2: SPI_CLK (master and slave)
H7
• GPIO: P4
• Keyboard scan input (row): KSI4
• Quadrature: QDY0
• Peripheral UART: puart_rx
• SPI_2: MOSI (master and slave)
• IR_TX
–
26
E6
P5
Input
Floating VDDO
• GPIO: P5
• Keyboard scan input (row): KSI5
• Quadrature: QDY1
• Peripheral UART: puart_tx
• SPI_2: MISO (master and slave)
BROADCOM
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September 9, 2013 • 20730-DS108-R
Page 32
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