A B O U T T H E D E V E L O P M E N T B O A R D
Debug breakout header, P21
D e b u g b r e a k o u t h e a d e r , P 2 1
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The debug breakout header’s primary purpose is to provide access to the
W_DISABLE# signal. The W_DISABLE# signal is typically used as a hardware means to disable RF transmissions from the module without software intervention.
Debug breakout
header signal map | Pin | Type | Signal | Pin | Type | Signal |
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| 1 | Rsvd | SIM_PWR | 2 | Monitor pt | +3.3V_MC | |
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| 3 | Rsvd | SIM_RST | 4 | Monitor pt | LED_WWAN# | |
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| 5 | Rsvd | SIM_CLK | 6 | Monitor pt | GND | |
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| 7 | Rsvd | SIM_Pin 4 | 8 | Monitor pt | LED_WLAN# | |
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| 9 | Rsvd | SIM_GND | 10 | Monitor pt | GND | |
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| 11 | Rsvd | SIM_VPP | 12 | Monitor pt | LED_WPAN# | |
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| 13 | Rsvd | SIM_DATA | 14 | Monitor pt | GND | |
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| 15 | Rsvd | SIM_Pin 8 | 16 | Monitor pt | RESET# | |
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| 17 | n/a | No connect | 18 | Monitor pt | GND | |
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| 19 | Monitor pt | GND | 20 | In | W_DISABLE# | |
W_DISABLE# |
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The active low W_DISABLE# signal is on pin 20 of the debug breakout header. GND | |||||||
signal | signals are positioned adjacent to the W_DISABLE# signal on pins 18 and 19. To |
24 | Connect |