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C161 Datasheet(PDF) 157 Page - Infineon Technologies AG |
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C161 Datasheet(HTML) 157 Page - Infineon Technologies AG |
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157 / 400 page  &3, 3DUDOOHO 3RUWV User’s Manual 7-31 1999-08 Alternate Functions of Port 6 A programmable number of chip select signals (CS4...CS0) derived from the bus control registers (BUSCON4...BUSCON0) can be output on 5 pins of Port 6. The other 3 pins may be used for I 2C Bus interface lines. The number of chip select signals is selected via PORT0 during reset. The selected value can be read from bitfield CSSEL in register RP0H (read only) e.g. in order to check the configuration during run time. The table below summarizes the alternate functions of Port 6 depending on the number of selected chip select lines (coded via bitfield CSSEL). Figure 7-19 Port 6 IO and Alternate Functions Table 7-6 Alternate Functions of Port 6 Port 6 Pin Altern. Function CSSEL = 10 Altern. Function CSSEL = 01 Altern. Function CSSEL = 00 Altern. Function CSSEL = 11 P6.0 P6.1 P6.2 P6.3 P6.4 Gen. purpose IO Gen. purpose IO Gen. purpose IO Gen. purpose IO Gen. purpose IO Chip select CS0 Chip select CS1 Gen. purpose IO Gen. purpose IO Gen. purpose IO Chip select CS0 Chip select CS1 Chip select CS2 Gen. purpose IO Gen. purpose IO Chip select CS0 Chip select CS1 Chip select CS2 Chip select CS3 Chip select CS4 P6.5 P6.6 P6.7 SDA1 I 2C bus data line 1 SCL1 I 2C bus clock line 1 SDA2 I 2C bus data line 2 - - - - - - - - P6.7 P6.6 P6.5 P6.4 P6.3 P6.2 P6.1 P6.0 Port 6 - - - - - - - - SDA2 SCL1 SDA1 CS4 CS3 CS2 CS1 CS0 Alternate Function a) General Purpose Input/Output |
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