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PC87393 Datasheet(PDF) 27 Page - National Semiconductor (TI) |
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PC87393 Datasheet(HTML) 27 Page - National Semiconductor (TI) |
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27 / 148 page  2.0 Device Architecture and Configuration (Continued) 27 www.national.com Figure 1. PC8739x Detailed Block Diagram Serial Port 1 Bus Interface LCLK LRESET LAD3-0 LFRAME LDRQ SERIRQ CLKIN SIN1 SOUT1 RTS1 DTR1_BOUT1 CTS1 DSR1 DCD1 RI1 IRRX1,IRRX2 IRTX IRSL2-0 SIN2 SOUT2 RTS2 DTR2_BOUT2 CTS2 DSR2 DCD2 RI2 Serial Port 2 IRSL3 PE SLCT PD7-0 Parallel Port DRATE0 RDATA WDATA WGATE HDSEL DIR STEP TRK0 INDEX WP MTR1,0 DR1,0 DENSEL FDC WATCHDOG Timer WDO GPIO07-00 GPIO Ports SMI STB_WRITE AFD_DSTRB ERR INIT SLIN_ASTRB ACK BUSY_WAIT DSKCHG BADDR XCNF2-0 & Control Registers Config Game JOYAX JOYAY JOYABTN0 JOYABTN1 JOYBX JOYBY JOYBBTN0 JOYBBTN1 MIDI Port MDTX MDRX Strap Config CLKRUN LPCPD X-Bus Extension XWR XA19-0 XD7-0 XRD XCS1-0 XSTB2-0 PIRQA-D TEST GPIO17-10 GPIO27-20 GPIO37-30 Port Wake-Up Control PWUREQ XIOWR XIORD PNF PPM FIR Note: Not all members of the PC8739x family contain all these blocks. For device-specific information, see the Block Diagrams on Page 4. |
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