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Z8F021ASH020SC 数据表(PDF) 125 Page - Zilog, Inc. |
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Z8F021ASH020SC 数据表(HTML) 125 Page - Zilog, Inc. |
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125 / 276 page ![]() PS022815-0206 UART Z8 Encore! XP® 4K Series Product Specification 106 UART Address Compare Register The UART Address Compare (UxADDR) register stores the multi-node network address of the UART (see Table 68). When the MPMD[1] bit of UART Control Register 0 is set, all incoming address bytes are compared to the value stored in the Address Compare reg- ister. Receive interrupts and RDA assertions only occur in the event of a match. COMP_ADDR—Compare Address This 8-bit value is compared to incoming address bytes. UART Baud Rate High and Low Byte Registers The UART Baud Rate High (UxBRH) and Low Byte (UxBRL) registers (Tables 69 and 70) combine to create a 16-bit baud rate divisor value (BRG[15:0]) that sets the data trans- mission rate (baud rate) of the UART. Table 68. UART Address Compare Register (U0ADDR) BITS 7 6 5 4 3 2 1 0 FIELD COMP_ADDR RESET 0 000 00 00 R/W R/WR/W R/WR/W R/WR/W R/WR/W ADDR F45H Table 69. UART Baud Rate High Byte Register (U0BRH) BITS 7 6 5 4 3 2 1 0 FIELD BRH RESET 1 111 11 11 R/W R/WR/W R/WR/W R/WR/W R/WR/W ADDR F46H Table 70. UART Baud Rate Low Byte Register (U0BRL) BITS 7 6 5 4 3 2 1 0 FIELD BRL RESET 1 111 11 11 R/W R/WR/W R/WR/W R/WR/W R/WR/W ADDR F47H |
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