User Manual

Model SM200 Data Sheet · Document Number 430145-01B · Page 7 of 21
©2012 Synapse Wireless, Inc. · 500 Discovery Drive, Huntsville, AL 35806 · 256-852-7888 · synapse-wireless.com
SM200P81
Pin
RF200P81
Pin
Pin Name
SNAPpy
IO
Pin Description
D8 1, 24 GND Power Supply
E1
PB2_MOSI_ PCINT2
2
2 IO or Hardware SPI MOSI or Interrupt
E2
PB3_MISO_ PCINT3
2
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_PCINT0
2
0 IO or Hardware SPI Select or Interrupt
F2
PB1_SCK_PCINT1
2
1 IO or Hardware SPI Clock or Interrupt
F3
PD1_SDA_INT1
2
9 IO or Hardware I2C or Interrupt
F4
PD0_SCL_INT0
2
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 I2C and SPI hardware that is not natively supported by SNAP. You could use
peek and poke to initialize and enable this hardware functionality. Use at your own risk!