User`s manual

78 RabbitCore RCM3400
Selected signals from the Rabbit 3000 microprocessor are available on header J1 of the
Prototyping Board. The remaining ports on the Rabbit 3000 microprocessor are used for
RS-232, RS-485, and Ethernet serial communication. Table B-2 lists the signals on header
J1 and explains how they are used on the Prototyping Board.
Table B-2. Use of Rabbit 3000 Signals on RCM3400 Prototyping Board
Pin Pin Name Prototyping Board Use
1–8 PA0–PA7 External I/O data, ID0–ID7
9 PB1 Programming port CLKA
10–15 PB2–PB7 External I/O address, IA0–IA5
16–17 PC0–PC1 Serial Port D (RS-232, header J5)
18–19 PC2–PC3 Serial Port C (RS-232, header J5)
20–21 PC6–PC7 Serial Port A (programming port)
22 /IORD External read strobe
23 /IOWR External write strobe
24 STATUS Output
25 SMODE1
Programming port
26 SMODE0
27 PD0 RS-485 transmit enable
28 PD4 Switch S3 (normally open/pulled up)
29 PD5 Switch S2 (normally open/pulled up)
30 PD6 LED DS1 (normally high/off)
31 PD7 LED DS2 (normally high/off)
32 PE0 Ethernet
33 PE1 Input (pulled up)
34 PE2 Ethernet
35 PE4 IrDA
36 PE5 Input (pulled up)
37 PE6 External I/O strobe, LCD/keypad module
38 PE7 Input (pulled up)
39–40 PF0–PF1 Input (pulled up)
41–44 PF4–PF7 Input (pulled up)
45 PG0 Input (pulled up)
46 PG1 Ethernet
47–48 PG2–PG3 Serial Port F (RS-232/IrDA)
49–50 PG4–PG5 IrDA inputs
51–52 PG6–PG7 Serial Port E (RS-485/RS-232)
53 /RES_OUT Reset output from Reset Generator
54 /RESET_IN Input to Reset Generator
55 +3.3 V
56 GND
57 VBAT
58 +3.3 V
59–60 GND