User`s manual

AMBE-3000™-HDK Development Board
User’s Manual Version 1.1
Page 43
DVSI Confidential Proprietary
Operation
AMBE−3000 HDK
TM
JP 1 1
J
P
5
J
P
1
2
Digi tal Voi c e Sys t em s, I nc .
P1P2
P5
J
P
1
0
S1
R
E
V
I
S
I
O
N
1.0
©2007
RESET
WD Disable
U12
U10
Input
Select
U13
U14
U8
U9
U7
Y2
Y1
X2
U5
U1
U3
SW2
JP7
X1
U6
SW1
J2
J3
P3
P6
JP1 6
JP15
J
P
4
J
P
2
JP8
U4
JP3
JP13
Figure 24 Two HDK boards connected together
Figure 25 RS-232 Null Modem Cable Pin-out
This cable configuration is used for “Dual-HDK Mode”, Codec Mode UART Interface, Packet Mode
UART Interface and “UART Loopback Mode”.