User's Manual

July 23, 2002 4-3
CreataLink2 XT Hardware Integrator’s Guide Hardware Integration
Host Interface
Host Interface
The CreataLink2 XT device has two connectors that interface with the host:
• Power/Serial/Parallel I/O
• I/O Pin Interface
Power/Serial/Parallel I/O
The 22-pin connector provides electrical power, serial communications, and I/O
capability to the data transceiver.
8- and 22-pin part numbers are listed in "Parts Information".
22-pin vertical head connector pin signals are shown in Table 4-1.
Table 4-1. 22-Pin Vertical Header Connector Pin Signals
Pin
Number
Signal Name Description
1
Supply
Power Supply Connection
2
GND
Ground
3
TXDO
3.3V TTL Serial Data from CreataLink2 XT
4
RS232_TXDO
+/- 5V RS-232 Serial Data from CreataLink2 XT
5
BATT
Backup Battery / Alternate Transmit Power Supply
6
BATT_GND
Ground
7
RXDI
TTL Serial Data Received by CreataLink2 XT
8
RS232_RXDI
RS-232 Serial Data Received by CreataLink2 XT
9
RESET_ENABLE
3.3V active-high input used to enable external
reset capability (no connect if not used)
10
EXT_RESET
3.3V active-low input used to reset CreataLink2 XT
(no connect if not used)
11
RX_ACTIVE
3.3V when CreataLink2 XT is receiving a page
12
TX_ACTIVE
3.3V when CreataLink2 XT is transmitting a page
13
A/D_EXT1
Externally supplied analog input
14
A/D_EXT2
Externally supplied analog input
15
HVIO_0
Open collector output/High voltage input
16
HVIO_1
Open collector output/High voltage input
17
HVIO_2
Open collector output/High voltage input
18
HVIO_3
Open collector output/High voltage input
NUF8006 only: Input Capture 2