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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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TMP93CS44 датащи(PDF) 146 Page - Toshiba Semiconductor |
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TMP93CS44 датащи(HTML) 146 Page - Toshiba Semiconductor |
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146 / 224 page  TMP93CS44/S45 2004-02-10 93CS44-144 Main setting 7 6 5 4 3 2 1 0 P6CR ← − − − − − − 0 − Select P61 (RXD) as the input pin. SC0MOD ← − 0 1 X 1 0 0 1 Enable receiving in 8-bit UART mode. SC0CR ← X 0 1 X X X 0 0 Add an odd parity. BR0CR ← 0 X 0 1 0 1 0 1 Set transfer rate at 9600 bps. TRUN ← 1 X − − − − − − Start the prescaler for the baud rate generator. INTES0 ← − − − − 1 1 0 0 Enable INTRX0 interrupt and set interrupt level 4. X: Don’t care, −: No change Interrupt processing ACC ← SC0CR AND 00011100 if ACC ≠ 0 then ERROR Check for error. ACC ← SC0BUF Read the received data. (4) Mode 3 (9-bit UART mode) 9-bit UART mode can be specified by setting SC0MOD<SM1:0> to 11. In this mode, parity bit cannot be added. For transmission, the MSB (9th bit) is written in SC0MOD<TB8>, while in receiving it is stored in SC0CR<RB8>. For writing and reading the buffer, the MSB is read or written first then SC0BUF. Wakeup function In 9-bit UART mode, the wakeup function of slave controllers is enabled by setting SC0MOD<WU> to 1. The interrupt INTRX0 occurs only when <RB8> = 1. Note: TXD pin of the slave controllers must be in open drain output mode. Figure 3.9.21 Serial Link Using Wakeup Function TXD RXD Master TXD RXD Slave 1 TXD RXD Slave 2 TXD RXD Slave 3 |
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