User Manual

Apollo3 Blue Datasheet
DS-A3-0p9p1 Page 51 of 909 2019 Ambiq Micro, Inc.
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G5 F4 3
0 UA0RTS UART0 Request To Send (RTS) Output
1 SLnCE SPI Slave Chip Enable Input
2 NCE3
IO Master N Chip Select 3
Table 564, “NCE Encoding Table,” on page 382
Output
3 GPIO03 General Purpose I/O
Input/
Output
4RSVReserved
5MSPI7
MSPI Master Interface Signal 7
See “MSPI Connection” on page 393.
Input/
Output
6 TRIG1 ADC Trigger Input Input
7 I2SWCLK I2S Word Clock Input
D9 C1 4
0 UA0CTS UART0 Clear To Send (CTS) Input
1 SLINT Configurable Slave Interrupt Output
2 NCE4
IO Master N Chip Select 4
Table 564, “NCE Encoding Table,” on page 382
Output
3 GPIO04 General Purpose I/O
Input/
Output
4RSVReserved
5 UART1RX UART1 Receive Input
6CT17
Timer/Counter Interface Signal 17
See “Implementing Counter/Timer Connections” on
page 394.
Output
7MSPI2
MSPI Master Interface Signal 2
See “MSPI Connection” on page 393.
Input/
Output
E9 D2 5
0M0SCL
I
2
C Master 0 Clock
Open
Drain
Output
1 M0SCK SPI Master 0 Clock Output
2 UA0RTS UART0 Request To Send (RTS) Output
3 GPIO05 General Purpose I/O
Input/
Output
4RSVReserved
5RSVReserved
6RSVReserved
7CT8
Timer/Counter Interface Signal 8
See “Implementing Counter/Timer Connections” on
page 397.
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