Rs232 Interface; Lcd; Rtc; Mmc - Profichip VPC3+ Manual

2.10 RS232 Interface

Figure 2-5: Assignment of the RS232 Connector
2.11

LCD

The display area consist of a 2-line 20 characters LCD-display. The
contrast is adjustable using R3 variable resistor. The LCD is described
more detailed in the document
2.12

RTC

The V3022 is a low power CMOS real time clock with a built-in crystal. The
interface is 8 bits with multiplexed address and data bus. Multiplexing of
address and data is handled by the input line /D. The RTC is described
more detailed in the document V3022_DS.pdf.
2.13

MMC

Multi Media Card is not supported.
2.14

I2C

I2C is not supported
VPC3+ Evaluation Kit
Copyright © profichip GmbH, 2005
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Revision 2.00
AT89C5132 Board 2
Assignment
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