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PSD813F1 датащи(PDF) 36 Page - STMicroelectronics |
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PSD813F1 датащи(HTML) 36 Page - STMicroelectronics |
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36 / 110 page ![]() PSD813F1 36/110 DECODE PLD (DPLD) The DPLD, shown in Figure 16, is used for decod- ing the address for internal and external compo- nents. The DPLD can be used to generate the following decode signals: s 8 sector selects for the main Flash memory (three product terms each) s 4 sector selects for the EEPROM (three product terms each) s 1 internal SRAM select signal (two product terms) s 1 internal CSIOP (PSD configuration register) select signal s 1 JTAG select signal (enables JTAG on Port C) s 2 internal peripheral select signals (peripheral I/O mode). Figure 16. DPLD Logic Array Note: 1. The address inputs are A19-A4 in 80C51XA mode. (INPUTS) (24) (8) (16) (1) PDN (APD OUTPUT) I /O PORTS (PORT A,B,C) (8) PGR0 - PGR7 (8) MCELLAB.FB [7:0] (FEEDBACKS) MCELLBC.FB [7:0] (FEEDBACKS) A[15:0] (1) (3) (3) PD[2:0] (ALE,CLKIN,CSI) CNTRL[2:0] (READ/WRITE CONTROL SIGNALS) (1) (1) RESET RD_BSY RS0 CSIOP PSEL0 PSEL1 8 FLASH MEMORY SECTOR SELECTS SRAM SELECT I/O DECODER SELECT PERIPHERAL I/O MODE SELECT EES 0 EES 1 EES 2 EES 3 FS0 FS7 3 3 3 3 3 3 3 3 3 3 3 3 2 JTAGSEL AI09226 FS1 FS2 FS3 FS6 FS5 FS4 1 1 1 1 EEPROM SELECTS |
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