User Manual

Apollo3 Blue Datasheet
DS-A3-0p9p1 Page 52 of 909 2019 Ambiq Micro, Inc.
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E8 E2 6
0 M0SDAWIR3
I
2
C Master 0 Data
SPI Master 0 3 Wire Data
Bidirec-
tional
Open
Drain
1 M0MISO SPI Master 0 Input Data Input
2 UA0CTS UART0 Clear To Send (CTS) Input
3 GPIO06 General Purpose I/O
Input/
Output
4RSVReserved
5CT10
Timer/Counter Interface Signal 10
See “Implementing Counter/Timer Connections” on
page 394.
Output
6RSVReserved
7 I2SDAT I2S Data Output
F9 F2 7
0 NCE7
IO Master N Chip Select 7
Table 564, “NCE Encoding Table,” on page 382
Output
1 M0MOSI SPI Master 0 Output Data Output
2 CLKOUT Programmable Output Clock Output
3 GPIO07 General Purpose I/O
Input/
Output
4 TRIG0 ADC Trigger Input Input
5 UART0TX UART0 Transmit Output
6RSVReserved
7CT19
Timer/Counter Interface Signal 19
See “Implementing Counter/Timer Connections” on
page 397.
Output
F8 D1 8
0M1SCL
I
2
C Master 1 Clock
Open
Drain
Output
1 M1SCK SPI Master 1 Clock Output
2 NCE8
IO Master N Chip Select 8
Table 564, “NCE Encoding Table,” on page 382
Output
3 GPIO08 General Purpose I/O
Input/
Output
4 SCCCLK Secure Card Controller Clock Output
5RSVReserved
6 UART1TX UART1 Transmit Output
7RSVReserved
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