User’s Manual
59
5.3 Rabbit Pin Descriptions
Table 5-1 lists all the pins on the device, along with their direction, function, and pin num-
ber on the package.
Table 5-1. Rabbit Pin Descriptions
Pin Group
Pin Name
Direction
Function
Pin
Numbers
LQFP
Pin
Numbers
TFBGA
Hardware
CLK
Output
Internal Clock
2
B1
CLK32K
Input
32kHz Oscillator In
49
/RESET
Input
Master Reset
46
RESOUT
Output
Reset Output
50
XTALA1
Input
Main Oscillator In
113
B7
XTALA2
Output
Main Oscillator Out
114
A7
CPU Buses
ADDR[19:0]
Output
Address Bus
various
DATA[7:0]
Bidirectional
Data Bus
19-18, 15-
10
Status/Control /WDTOUT
Output
WDT Time-Out
43
STATUS
Output
Instruction Fetch First
Byte
4
SMODE[1:0]
Input
Bootstrap Mode Select
[44,45]
Memory Chip
Selects
/CS0
Output
Memory Chip Select 0
7
/CS1
Output
Memory Chip Select 1
47
/CS2
Output
Memory Chip Select 2
3
Memory
Output
Enables
/OE0
Output
Memory Output Enable
0
5
/OE1
Output
Memory Output Enable
1
95
Memory
Write Enables
/WE0
Output
Memory Write Enable 0
86
/WE1
Output
Memory Write Enable 1
99
I/O Control
/BUFEN
Output
I/O Buffer Enable
42
/IORD
Output
I/O Read Enable
41
/IOWR
Output
I/O Write Enable
40
I/O ports
PA[7:0]
Input / Output I/O Port A
104-111
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