Ez700SR/Ez900HDS
13
MICROCOMPUTER’S TERMINAL DESCRIPTION
r
Antenna Detection Method
(1) SSM internal circuit is used to detect antenna connection. Sub
µ
-
com makes judgment by a notification from SSP.
(2) Current detection for excess current protection uses the same
method as KTC-SR902.
It is necessary to change the threshold set by software, as resis-
tance value for detection has been changed.
When the value is “28” or higher, it is determined that excess cur-
rent is detected
→
DC/DC is stopped.
(3) Antenna power supply produced in DC/DC is 7.2V.
t
Normal Condition
URATcommunication permitted condition (In test mode, permission is
to be given when 5L sources equivalent to simplified AUX are recog-
nized.)
UART_O H/L
UART_SW L
LX_DATA_M_2 H/L
URAT_I
LX_DATA_S_2
LX DATA M
LX DATA S
Signal name Terminal setting
Debug terminal TX
Debug terminal RX
UART_O H/L
UART_SW H
LX_DATA_M_2 Z
URAT_I
LX_DATA_S_2
LX DATA M
LX DATA S
Signal name
Debug terminal TX
Debug terminal RX
(OD H-output or input setting)
Ignore
y
Normal Condition
URAT connection permitted condition (Permission is to be given when
receiving specific command from UART terminal, or in case of IDM D/
L. Recovery is made only by resetting.)
ID M UART RX
IDM UART TX
UART_O H/L
U_SW L
URAT_I
Signal name
Terminal setting
Debug terminal TX
Debug terminal RX
ID M UART RX
IDM UART TX
UART_O Z
U_SW H
URAT_I
Signal name
Terminal setting
(OD H-output or input setting)
Debug terminal TX
→
(Used as RX.)
Debug terminal RX
→
(Used as TX.)
Ignore
u
K (10kHz_span)
f1
f2
f3
*1
360
405
445
*2
720
810
890
*3
1080
1215
1335
*4
1440
1620
1780
*5
1800
2025
2225
SW1 SW2
q
When f0 is outside the range of ((n1xf3)
±
85)
H
L
(n1=1,2,3,4,5)
w
When f0 is within the range of ((n1xf3)
±
85)
L
L
(n1=1,2,3,4,5)
When f0 is within the range of ((n1xf3)
±
85) and
e
at the same time within the range of ((n1xf1)
±
85)
L
H
(n1=1,2,3,4,5)
* f1~f3 are written on E2PROM.
