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PCF88331 Datasheet(PDF) 61 Page - NXP Semiconductors |
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PCF88331 Datasheet(HTML) 61 Page - NXP Semiconductors |
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61 / 112 page ![]() 2003 Feb 14 61 Philips Semiconductors Objective specification STN RGB - 132 × 132 × 3 driver PCF8833 Table 80 Enable/disable factory defaults reset state 7 FUNCTIONAL DESCRIPTION 7.1 MPU interfaces The PCF8833 can interface to a microcontroller with an 8-bit parallel or a serial interface to transmit both data and commands to the PCF8833. 7.1.1 HARDWIRED INTERFACE SELECTION The selection of a given interface is done by setting pins PS0, PS1 and PS2 as shown in Table 81. Inputs PS1 and PS2 must be connected to VDD1 or VSS1. Table 81 Interface selection; note 1 Note 1. X = don’t care. 7.1.2 GENERAL PROTOCOL The generally supported protocol for programming the LCD driver is shown in Fig.33. BIT LOGIC 0 LOGIC 1 (RESET STATE) SFD registers must be set via the interface OTP programmed data is used PS2 PS1 PS0 INTERFACE READBACK SELECT X X 0 serial (3-line) via the read instruction X X 1 8080 MPU basic RD write strobe handbook, full pagewidth MGU942 TB TB TB TB TB P S Fig.33 Programming protocol. S = start data transmission; P = stop data transmission; TB = transmission byte. |
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