Specifications

SM700 Port Pin mappings
Module
Pin
ProcessorPortPin SNAPpyIO
Module
Pin
ProcessorPortPin SNAPpyIO
1 Ground 31 VCC
2 Ground32 GPIO_10
17
10
3 Ground33 GPIO_9
18
9
4 GPIO_39ADC2_VREFL 3934 GPIO_8
19
8
5 GPIO_41ADC1_VREFL 4135 GPIO_7SPI_SCK 7
6 GPIO_40ADC1_VREFH 4036 GPIO_14UART0_TX 14
7 GPIO_38ADC2_VREFH 3837 GPIO_15UART0_RX 15
8 GPIO_30ADC0 3038 Ground
9 GPIO_31ADC1 3139 GPIO_6SPI_MOSI 6
10 GPIO_32ADC2 3240 GPIO_5SPI_MISO 5
11 GPIO_33ADC3 3341 GPIO_4 4
12 VCC42 GPIO_3 3
13 GPIO_34ADC4 3443 GPIO_2 2
14 GPIO_35ADC5 3544 GPIO_1 1
15 GPIO_36ADC6 3645 GPIO_0 0
16 GPIO_37ADC7 3746 GPIO_29INTKBI_7 29
17 GPIO_49 4947 COIL_BK
20
18 GPIO_48 4848 GPIO_28INTKBI_6 28
19 GPIO_47 4749 RESET*
20 GPIO_46 4650 LREG_BK_FB
21 GPIO_21UART1_RTS 2151 Ground
22 Ground52 GPIO_27INTKBI_5 27
23 GPIO_20UART1_CTS 2053 GPIO_26INTKBI_4 26
24 GPIO_19UART1_RX 1954 GPIO_25KBI_3
21
25
25 GPIO_18UART1_TX 1855 GPIO_24KBI_2 24
26 GPIO_17UART0_RTS 1756 GPIO_23KBI_1 23
27 GPIO_16UART0_CTS 1657 GPIO_22KBI_0 22
28 GPIO_13I
2
C_SDA 1358 Ground
29 CPIO_12I
2
C_SCL 1259 Ground
30 GPIO_11 1160 Ground
17
GPIO_10 can be used for hardware PWM (TMR2).
18
GPIO_9 can be used for hardware PWM (TMR1).
19
GPIO_8 can be used for hardware PWM (TMR0).
20
COIL_BK and LREG_BK_FB (pins 47 and 50) can be used to connect a buck regulator to reduce system power
consumption when running on batteries. See the Freescale MC1322x documentation for details.
21
KBI_3 through KBI_0 are considered outputs for the keyboard interface. They do not function as interrupts capable of
waking a sleeping node (in spite of their name).
SNAP Reference Manual Document Number 600-0007K Page 185 of 202