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C167CS Datasheet(PDF) 128 Page - Infineon Technologies AG |
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C167CS Datasheet(HTML) 128 Page - Infineon Technologies AG |
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128 / 517 page  C167CS Derivatives Parallel Ports User’s Manual 7-1 V2.0, 2000-07 7 Parallel Ports In order to accept or generate single external control signals or parallel data, the C167CS provides up to 111 parallel IO lines organized into one 16-bit IO port (Port 2), eight 8-bit IO ports (PORT0 made of P0H and P0L, PORT1 made of P1H and P1L, Port 4, Port 6, Port 7, Port 8), one 15-bit IO port (Port 3), and one 16-bit input port (Port 5). These port lines may be used for general purpose Input/Output controlled via software or may be used implicitly by the C167CS’s integrated peripherals or the External Bus Controller. All port lines are bit addressable, and all input/output lines are individually (bit-wise) programmable as inputs or outputs via direction registers (except Port 5, of course). The IO ports are true bidirectional ports which are switched to high impedance state when configured as inputs. The output drivers of six IO ports (2, 3, 4, 6, 7, 8) can be configured (pin by pin) for push/pull operation or open-drain operation via control registers. The logic level of a pin is clocked into the input latch once per state time, regardless whether the port is configured for input or output. Figure 7-1 SFRs and Pins associated with the Parallel Ports P0L MCA04460 Data Input / Output Registers Direction Control Registers Port Driver Control Register Diverse Control Registers P2 P4 P5 P0H P1L P1H P3 P6 P7 P8 DP0L DP2 DP4 DP0H DP1L DP1H DP3 DP6 DP7 DP8 E E E E POCON2 POCON4 POCON0H POCON1L POCON1H POCON3 E E E E POCON0L E E E E E E E POCON6 POCON7 POCON8 POCON20 E PICON P1DIDIS ODP2 E ODP3 E E ODP4 E P5DIDIS E ODP6 E ODP7 E ODP8 |
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