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Apollo3 Blue Datasheet

DS-A3-0p9p1 Page 65 of 909 2019 Ambiq Micro, Inc.

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G9 G3 48

0 UART0TX UART0 Transmit Output

1 NCE48

IO Master N Chip Select 48

Table 564, “NCE Encoding Table,” on page 382

Output

2CT28

Timer/Counter Interface Signal 28

See “Implementing Counter/Timer Connections” on

page 394.

Output

3 GPIO48 General Purpose I/O

Input/

Output

4 M5SCL I2C Master 5 Clock

Open

Drain

5 M5SCK SPI Master 5 Clock Output

6RSVReserved

7RSVReserved

H8 G1 49

0 UART0RX UART0 Receive Input

1 NCE49

IO Master N Chip Select 49

Table 564, “NCE Encoding Table,” on page 382

2CT30

Timer/Counter Interface Signal 30

See “Implementing Counter/Timer Connections” on

page 394.

Output

3 GPIO49 General Purpose I/O

Input/

Output

4 M5SDAWIR3

I2C Master 5 I/O Data

SPI Master 5 3 Wire Data

Bidirec-

tional

Open

Drain

5 M5MISO SPI Master 5 Input Data Input

6RSVReserved

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