User`s manual

User’s Manual Hardware Reference 2–3
Table 2–1: RabbitCore RCM2200 Pinout Configurations
Pin Pin Name Default Use Alternate Use Notes
Header J4
1GND
2VCC
3PC0 Output TXD
4PC1 Input RXD
5PC2 Output TXC
6PC3 Input RXC
7TPOUT–
Ethernet transmit port
8TPOUT+
9LNK
Ethernet LNK LED
indicator
10 PD3
Bitwise or parallel
programmable I/O
11 PD4 ATXB output
12 PD5 ARXB input
13 /IORD
Input (I/O read
strobe)
14 /IOWR
Output (I/O write
strobe)
15 PE0
Bitwise or parallel
programmable I/O
I0 control or INT0A input
16 PE1 I1 control or INT1A input
17 TPIN–
Ethernet receive port
18 TPIN+
19 PE4
Bitwise or parallel
programmable I/O
I4 control or INT0B input
20 PE5 I5 control or INT1B input
21 ACT
Ethernet active (ACT)
LED indicator
22 PE7
Bitwise or parallel
programmable I/O
I7 control or slave port
chip select /SCS
23–26 A[3:0] Rabbit 2000 address bus