CMOSTEK CMT2380F17, Руководство пользователя

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CMT2380F17
Rev0.1 | 244/347
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S1BUF
：
Serial port 1 Buffer Register
SFR Page = 1 only
SFR Address = 0x99
Bit 7 6 5 4 3 2 1 0
Name S1BUF[7:0]
R/W R/W R/W R/W R/W R/W R/W R/W R/W
Reset Value X X X X X X X X
Bit 7~0: It is used as the buffer register in transmission and reception.
S1BRT
：
Serial port 1 Baud Rate Timer Reload Register
SFR Page = 1 only
SFR Address = 0x9A
Bit 7 6 5 4 3 2 1 0
Name S0BRT[7:0]
R/W R/W R/W R/W R/W R/W R/W R/W R/W
Reset Value 0 0 0 0 0 0 0 0
Bit 7~0: It is used as the reload value register for baud rate timer generator that works in a similar manner
as Timer 1.
S1BRC
：
Serial port 1 Baud Rate Timer Reload Register
SFR Page = 1 only
SFR Address = 0x9A
Bit 7 6 5 4 3 2 1 0
Name S0BRC[7:0]
R/W R/W R/W R/W R/W R/W R/W R/W R/W
Reset Value 0 0 0 0 0 0 0 0
Bit 7~0: It is used as the reload value register for baud rate timer generator that works in a similar manner
as Timer 1. This register can be always read/written by software. If S1CFG.S1TME = 0, software writing
S1BRT will store the data content to S1BRT and S1BRC concurrently.
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S1CFG
：
Serial Port 1 Configuration Register
SFR Page = 1 only
SFR Address = 0x9C
，
Bit 7 6 5 4 3 2 1 0
Name SM31 S1M0X3 S1DOR S1TR S1MOD1 S1TX12 S1CKOE S1TME
R/W R/W R/W R/W R/W R/W R/W R/W R/W
Reset Value 0 0 1 0 0 0 0 0
Bit 7: SM31, Serial Port 1 Mode control bit 3.
SM31 SM01 SM11 Mode Description Baud Rate
0 0 0 0 shift register SYSCLK/12 or SYSCL/4
0 0 1 1 8-bit UART variable
0 1 0 2 9-bit UART SYSCLK/64, /32 or /192, /96
0 1 1 3 9-bit UART Variable
1 0 0 4 SPI Master SYSCLK/12 or SYSCLK/4
1 0 1 5 Reserved Reserved
1 1 0 6 Reserved Reserved
1 1 1 7 Reserved Reserved
Bit 6: S1M0X3, this bit control the baud rate in S1 mode 0, mode 2 and mode 4. S1 in mode 0 and
mode4:
0: Clear to select SYSCLK/12 as the baud rate for S1 Mode 0 and Mode 4. 1: Set to select SYSCLK/4 as