Profichip PA006300, Manual, Page: 11 / 42

AT89C5132 Board 2
2.10 RS232 Interface
Pin Assignment
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
n.c.
TxD
RxD
n.c.
GND
n.c.
RTS
CTS
n.c.
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 Revision 2.00 7
Copyright © profichip GmbH, 2005