User Manual

Apollo3 Blue Datasheet
DS-A3-0p9p1 Page 59 of 909 2019 Ambiq Micro, Inc.
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A9 F3 28
0 I2SWCLK I2S Word Clock Input
1 NCE28
IO Master N Chip Select 28
Table 564, “NCE Encoding Table,” on page 382
Output
2CT7
Timer/Counter Interface Signal 7
See “Implementing Counter/Timer Connections” on
page 394.
Output
3 GPIO28 General Purpose I/O
Input/
Output
4RSVReserved
5 M2MOSI SPI Master 2 Output Data Output
6 UART0TX UART0 Transmit Output
7RSVReserved
A5 B5 29
0 ADCSE1 Analog to Digital Converter Single-Ended Input 1 Input
1 NCE29
IO Master N Chip Select 29
Table 564, “NCE Encoding Table,” on page 382
Output
2CT9
Timer/Counter Interface Signal 9
See “Implementing Counter/Timer Connections” on
page 394.
Output
3 GPIO29 General Purpose I/O
Input/
Output
4 UA0CTS UART0 Clear To Send (CTS) Input
5 UA1CTS UART1 Clear To Send (CTS) Input
6 UART0RX UART0 Receive Input
7 PDMDATA PDM Data Input
F6 - 30
0RSVReserved
1 NCE30
IO Master N Chip Select 30
Table 564, “NCE Encoding Table,” on page 382
Output
2CT11
Timer/Counter Interface Signal 11
See “Implementing Counter/Timer Connections” on
page 394.
Output
3 GPIO30 General Purpose I/O
Input/
Output
4 UART0TX UART0 Transmit Output
5 UA1RTS UART1 Request To Send (RTS) Output
6 BLEIF_SCK BLE Interface SCK Observation Output
7 I2SDAT I2S Data Output Output
Table 1: Pin List and Function Table
BGA
Pin
Number
CSP Pin
Number
GPIO Pad
Number
Function
Select
Number
Pad Function
Name
Description Pin Type