User Manual

Apollo3 Blue Datasheet
DS-A3-0p9p1 Page 381 of 909 2019 Ambiq Micro, Inc.
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Table 559: Apollo3 Blue MCU Pad Function Mapping
01234567
0 SLSCL SLSCK CLKOUT GPIO00 MSPI4 NCE0 X
1 SLSDAWIR3 SLMOSI UART0TX GPIO01 MSPI5 NCE1 X
2 UART1RX SLMISO UART0RX GPIO02 MSPI6 NCE2
X
3 UA0RTS SLnCE NCE3 GPIO03 MSPI7 TRIG1 I2SWCLK X
4 UA0CTS SLINT NCE4 GPIO04 UART1RX CT17 MSPI2 X
5 M0SCL M0SCK UA0RTS GPIO05 - CT8 X
6 M0SDAWIR3 M0MISO UA0CTS GPIO06 CT10 I2SDAT
X
7 NCE7 M0MOSI CLKOUT GPIO07 TRIG0 UART0TX CT19 X
8 M1SCL M1SCK NCE8 GPIO08 SCCCLK UART1TX X
9 M1SDAWIR3 M1MISO NCE9 GPIO09 SCCIO UART1RX X
10 UART1TX M1MOSI NCE10 GPIO10 PDMCLK UA1RTS X
11 ADCSE2 NCE11 CT31 GPIO11 SLINT UA1CTS UART0RX PDMDATA
X
12 ADCD0NSE9 NCE12 CT0 GPIO12 SLnCE PDMCLK UA0CTS UART1TX X
13 ADCD0PSE8 NCE13 CT2 GPIO13 I2SBCLK - UA0RTS UART1RX X
14 ADCD1P NCE14 UART1TX GPIO14 PDMCLK - SWDCK 32KHzXT X
15 ADCD1N NCE15 UART1RX GPIO15 PDMDATA - SWDIO SWO
X
16 ADCSE0 NCE16 TRIG0 GPIO16 SCCRST CMPIN0 UART0TX UA1RTS X
17 CMPRF1 NCE17 TRIG1 GPIO17 SCCCLK UART0RX UA1CTS X
18 CMPIN1 NCE18 CT4 GPIO18 UA0RTS - UART1TX SCCIO X
19 CMPRF0 NCE19 CT6 GPIO19 SCCCLK - UART1RX I2SBCLK
X
20 SWDCK NCE20 GPIO20 UART0TX UART1TX I2SBCLK UA1RTS X
21 SWDIO NCE21 GPIO21 UART0RX UART1RX SCCRST UA1CTS X
22 UART0TX NCE22 CT12 GPIO22 PDMCLK - MSPI0 SWO X
23 UART0RX NCE23 CT14 GPIO23 I2SWCLK CMPOUT MSPI3 -
X
24 UART1TX NCE24 MSPI8 GPIO24 UA0CTS CT21 32KHzXT SWO X
25 UART1RX NCE25 CT1 GPIO25 M2SDAWIR3 M2MISO X
26 - NCE26 CT3 GPIO26 SCCRST MSPI1 UART0TX UA1CTS X
27 UART0RX NCE27 CT5 GPIO27 M2SCL M2SCK
X
28 I2SWCLK NCE28 CT7 GPIO28 M2MOSI UART0TX X
29 ADCSE1 NCE29 CT9 GPIO29 UA0CTS UA1CTS UART0RX PDMDATA X
30 - NCE30 CT11 GPIO30 UART0TX UA1RTS BLEIF_SCK I2SDAT
31 ADCSE3 NCE31 CT13 GPIO31 UART0RX SCCCLK BLEIF_MISO UA1RTS
32 ADCSE4 NCE32 CT15 GPIO32 SCCIO - BLEIF_MOSI UA1CTS
33 ADCSE5 NCE33 32KHzXT GPIO33 BLEIF_CSN UA0CTS CT23 SWO
34 ADCSE6 NCE34 UA1RTS GPIO34 CMPRF2 UA0RTS UART0RX PDMDATA
35 ADCSE7 NCE35 UART1TX GPIO35 I2SDAT CT27 UA0RTS BLEIF_STATUS
36 TRIG1 NCE36 UART1RX GPIO36 32KHzXT UA1CTS UA0CTS PDMDATA
37 TRIG2 NCE37 UA0RTS GPIO37 SCCIO UART1TX PDMCLK CT29
38 TRIG3 NCE38 UA0CTS GPIO38 M3MOSI UART1RX
39 UART0TX UART1TX CT25 GPIO39 M4SCL M4SCK X
40 UART0RX UART1RX TRIG0 GPIO40 M4SDAWIR3 M4MISO
X
41 NCE41 BLEIF_IRQ SWO GPIO41 I2SWCLK UA1RTS UART0TX UA0RTS X
42 UART1TX NCE42 CT16 GPIO42 M3SCL M3SCK
43 UART1RX NCE43 CT18 GPIO43 M3SDAWIR3 M3MISO
44 UA1RTS NCE44 CT20 GPIO44 M4MOSI UART0TX
X
45 UA1CTS NCE45 CT22 GPIO45 I2SDAT PDMDATA UART0RX SWO
46 I2SBCLK NCE46 CT24 GPIO46 SCCRST PDMCLK UART1TX SWO
47 32KHzXT NCE47 CT26 GPIO47 M5MOSI UART1RX X
48 UART0TX NCE48 CT28 GPIO48 M5SCL M5SCK
X
49 UART0RX NCE49 CT30 GPIO49 M5SDAWIR3 M5MISO X
Pad
PADnFNCSEL
CSP PKG