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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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HD6417618A датащи(PDF) 491 Page - Renesas Technology Corp |
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HD6417618A датащи(HTML) 491 Page - Renesas Technology Corp |
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491 / 646 page  Section 17 I/O Ports Rev. 6.00 Jun. 12, 2007 Page 459 of 610 REJ09B0131-0600 17.2 Port B Port B of this LSI is an I/O port with 14 pins as shown in figure 17.2. PB09 (input/output)/ CE2A (output) PB08 (input/output)/ CS6B (output)/CE1B (output) PB07 (input/output)/ CE2B (output) PB06 (input/output)/ ICIOWR (output) PB05 (input/output)/ ICIORD (output) PB02 (input/output)/CKE (output) PB03 (input/output)/ CAS (output) PB04 (input/output)/ RAS (output) PB01 (input/output)/ IOIS16 (input) PB00 (input/output)/ WAIT (input) PB10 (input/output)/ CS5B (output)/CE1A (output) PB11 (input/output)/ CS4 (output) PB12 (input/output)/ CS3 (output) PB13 (input/output)/ BS (output) Port B Figure 17.2 Port B 17.2.1 Register Description Port B is a 14-bit I/O port that has a following register. For details on the address of this register and the states of this register in each processing state, see section 20, List of Registers. • Port B data register L (PBDRL) 17.2.2 Port B Data Register L (PBDRL) PBDRL is a 16-bit readable/writable register which stores data for port B. Bits PB13DR to PB0DR correspond to pins PB13 to PB00. (Description of multiplexed functions is omitted.) When the pin function is general output port, if the value is written to PBDRL, the value is output from the pin; if PBDRL is read, the value written to the register is directly read regardless of the pin state. |
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