User Manual

Apollo3 Blue Datasheet
DS-A3-0p9p1 Page 54 of 909 2019 Ambiq Micro, Inc.
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A7 B4 12
0 ADCD0NSE9
Analog to Digital Converter Differential N Input 0 /
Single-Ended Input 9
Input
1 NCE12
IO Master N Chip Select 12
Table 564, “NCE Encoding Table,” on page 382
Output
2CT0
Timer/Counter Interface Signal 0
See “Implementing Counter/Timer Connections” on
page 397.
Output
3 GPIO12 General Purpose I/O
Input/
Output
4 SLnCE SPI Slave Chip Enable Input
5 PDMCLK PDM Clock Output Output
6 UA0CTS UART0 Clear To Send (CTS) Input
7 UART1TX UART1 Transmit Output
B7 B3 13
0 ADCD0PSE8
Analog to Digital Converter Differential P Input 0 /
Single-Ended Input 9
Input
1 NCE13
IO Master N Chip Select 13
Table 564, “NCE Encoding Table,” on page 382
Output
2CT2
Timer/Counter Interface Signal 2
See “Implementing Counter/Timer Connections” on
page 397.
Output
3 GPIO13 General Purpose I/O
Input/
Output
4 I2SBCLK I2S Bit Clock Input
5RSVReserved
6 UA0RTS UART0 Request To Send (RTS) Output
7 UART1RX UART1 Receive Input
D7 A3 14
0 ADCD1P Analog to Digital Converter Differential P Input 1 Input
1 NCE14
IO Master N Chip Select 14
Table 564, “NCE Encoding Table,” on page 382
Output
2 UART1TX UART1 Transmit Output
3 GPIO14 General Purpose I/O
Input/
Output
4 PDMCLK PDM Output Clock Output
5RSVReserved
6 SWDCK Serial Wire Debug Clock Input
7 32kHzXT 32kHz Clock 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