BCM20730 Datasheet, PDF (38/62 Pages) Cypress Semiconductor – Single-Chip Bluetooth Transceiver for Wireless Input Devices

BCM20730 Data Sheet
Pin Descriptions
Table 8: GPIO Pin Descriptions^a (Cont.)
Pin Number
32-Pin 40-pin 64-pin
Default After Power
QFN QFN BGA Pin Name Direction POR Domain Alternate Function Description
–
–
E7 P31
Input
Floating VDDO
• GPIO: P31
• A/D converter input
• EEPROM WP pin in default FW
• Peripheral UART: puart_tx
25 31 D6 P32
Input
Floating VDDO
• GPIO: P32
• A/D converter input
• Quadrature: QDX0
• SPI_2: SPI_CS (slave only)
• SPI_1: MISO (master only)
• Auxiliary clock output: ACLK0
• Peripheral UART: puart_tx
24 30 D8 P33
Input
Floating VDDO
• GPIO: P33
• A/D converter input
• Quadrature: QDX1
• SPI_2: MOSI (slave only)
• Auxiliary clock output: ACLK1
• Peripheral UART: puart_rx
Alternative Function:
• P8 in 32-QFN only
–
–
B6 P34
Input
Floating VDDO
• GPIO: P34
• A/D converter input
• Quadrature: QDY0
• Peripheral UART: puart_rx
• External T/R switch control: tx_pd
–
–
D5 P35
Input
Floating VDDO
• GPIO: P35
• A/D converter input
• Quadrature: QDY1
• Peripheral UART: puart_cts
–
–
C4 P36
Input
Floating VDDO
• GPIO: P36
• A/D converter input
• Quadrature: QDZ0
• SPI_2: SPI_CLK (master and slave)
• Auxiliary Clock Output: ACLK0
• Battery detect pin in default FW
• External T/R switch control: ~tx_pd
BROADCOM ®
September 9, 2013 • 20730-DS108-R
BROADCOM CONFIDENTIAL
Page 37