Siemens MC55 User Manual download pdf (Page 23)

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GSM Status – R/W at GSM BASE + 402h (00h after reset)

GSM Status – Write GSM BASE + 402h

Bit 0 RESERVED

Bit 1 /EN_INT UART interrupt enabled; 1 - disabled

Bit 2 RESERVED

Bit 3 RESERVED

Bit 4 RESERVED

Bit 5 RESERVED

Bit 6 RESERVED

Bit 7 RESERVED

GSM Status

– Read GSM BASE + 402h

Bit 0 /EN_RST 1 – Reset GSM in reset, 0 – GSM active

Bit 1 /EN_INT GSM interrupt enabled; 1 – disabled

Bit 2 TEMP_LOW 1 - Board temperature below -20C

Bit 3 TEMP_HIGH 1 - Board temperature over +70C

Bit 4 RESERVED

Bit 5 RESERVED

Bit 6 RESERVED

Bit 7 RESERVED

GSM Control – R/W at GSM BASE + 403h (00h after reset)

GSM Control – Write GSM BASE + 403h

Bit 0 Ignition signal 1 – > 0 – results in IGN signal

Bit 1 Powerdown MC55 1 – Power down; 0 – Power on

Bit 2 RESERVED

Bit 3 RESERVED

Bit 4 RESERVED

Bit 5 RESERVED

Bit 6 RESERVED

Bit 7 RESERVED

GSM Control – Read GSM BASE + 403h

Bit 0 Ignition signal State of Ignition Bit

Bit 1 Powerdown MC55 1 – Power down; 0 – Power on

Bit 2 RESERVED

Bit 3 RESERVED

Bit 4 RESERVED

Bit 5 RESERVED

Bit 6 RESERVED

Bit 7 RESERVED

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Siemens MC55 User Manual Page 23