Model SM200 Data Sheet

∙

Document Number 430145-01B

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Page 7 of 21

©2012 Synapse Wireless, Inc.

∙

500 Discovery Drive, Huntsville, AL 35806

∙ 256-852-7888

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SM200P81

Pin

RF200P81

Pin

Pin Name

SNAPpy

IO

Pin Description

D8

1, 24

GND

Power Supply

E1

PB2_MOSI_ PCINT22

2

IO or Hardware SPI MOSI or Interrupt

E2

PB3_MISO_ PCINT32

3

IO or Hardware SPI MISO or Interrupt

E3

PB4_OC2A_PCINT4

4

IO or PWM or Interrupt

E4

NC

E5

NC

E6

NC

E7

NC

E8

RF OUT

50 Ohm RF output on specially ordered

devices

F1

PB0_SSN_PCINT02

0

IO or Hardware SPI Select or Interrupt

F2

PB1_SCK_PCINT12

1

IO or Hardware SPI Clock or Interrupt

F3

PD1_SDA_INT12

9

IO or Hardware I2C or Interrupt

F4

PD0_SCL_INT02

8

IO or Hardware I2C or Interrupt

F5

NC

F6

NC

F7

NC

F8

1, 24

GND

Power Supply

G1

CLKI

Must be pulled low during normal operation

G2

PD7_T0

15

G3

11

PD4_ICP1

12

IO or UART1 CTS output or Input Capture

G4

9

PD2_RXD1_INT2

10

IO or UART1 Data In or Interrupt

G5

PG5_OC0B

37

IO or PWM

G6

NC

G7

NC

G8

1, 24

GND

Power Supply

H1

1, 24

GND

Power Supply

H2

PD6_T1

14

IO or Timer/Counter1 clock input

H3

PD5_XCK1

13

IO or USART1 external clock input/output

H4

10

PD3_TXD1_INT3

11

IO or UART1 Data Out or Interrupt

H5

23

RESET#

Module Reset, Active Low

H6

TST

Must be pulled low during normal operation

H7

NC

H8

1, 24

GND

Power Supply

1

Other SNAP Engines have a debug connection on pin 22. The architecture of the RF200 requires multiple

debug connections, which come out on other pins. Rather than leave pin 22 useless, it is available as an

additional GPIO or Analog Comparator. This will not be directly accessible on Synapse development boards,

but custom circuit designs have the pin available for specialized purposes.

2

These pins have special I

and poke to initialize and enable this hardware functionality. Use at your own risk!