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SM8213 Datasheet(PDF) 24 Page - Nippon Precision Circuits Inc |
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SM8213 Datasheet(HTML) 24 Page - Nippon Precision Circuits Inc |
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24 / 33 page ![]() SM8213AM NIPPON PRECISION CIRCUITS—24 Received Data Bit 1 The receive data leading bit is always 1. Bit 2 Message/address indicator flag. When 0, the data is an address. When 1, the data is a message. Bit 3 Self address indicator flag. When 1, the data is treated as a self address (device address). When 0, the data is a message. When this bit is set to 1, the self address corresponds to one of the addresses indicated by bits 4 to 6. Bits 4 to 6 Address call sign flags. When bit 3 of data is 1, indicating a self address, these bits indicate the call sign. When the data is a message, all 3 bits are set to 0. Bits 7 to 8 Function bit flags. When bit 3 of data is 1, indicating a self address, these bits set the call function for the address indi- cated by bits 4 to 6. However, when a dummy address is received (address H), bits 7 and 8 are both set to 0. When the data is a message, both bits are set to 0. Table 7. Receive data format Bit Reception data 11 2 MESSAGE/ ADDRESS 3 SELF ADDRESS 4 ADDRESS 2 (ADDR 2) 5 ADDRESS 1 (ADDR 1) 6 ADDRESS 0 (ADDR 0) 7 FUNCTION 1 (FUNC 1) 8 FUNCTION 0 (FUNC 0) 9 SYN - VAL 10 ERROR 1 (ERR 1) 11 ERROR 0 (ERR 0) 12 PARITY ERROR 13 MESSAGE 1/ADDRESS 1 14 MESSAGE 2/ADDRESS 2 15 MESSAGE 3/ADDRESS 3 16 MESSAGE 4/ADDRESS 4 17 MESSAGE 5/ADDRESS 5 18 MESSAGE 6/ADDRESS 6 19 MESSAGE 7/ADDRESS 7 20 MESSAGE 8/ADDRESS 8 21 MESSAGE 9/ADDRESS 9 22 MESSAGE 10/ADDRESS 10 23 MESSAGE 11/ADDRESS 11 24 MESSAGE 12/ADDRESS 12 25 MESSAGE 13/ADDRESS 13 26 MESSAGE 14/ADDRESS 14 27 MESSAGE 15/ADDRESS 15 28 MESSAGE 16/ADDRESS 16 29 MESSAGE 17/ADDRESS 17 30 MESSAGE 18/ADDRESS 18 31 MESSAGE 19/FUNCTION 1 32 MESSAGE 20/FUNCTION 0 ADDR 2 ADDR 1 ADDR 0 Name 000 A 001 B 010 C 011 D 100 E 101 F 110 G 111 H FUNC 1 FUNC 0 Function 0 0 A Call 0 1 B Call 1 0 C Call 1 1 D Call |
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