User's Manual

PCS3_HD_v01.000-03
Confidential / Preliminary
Page 51 of 101
2013-10-21
PCS3 Hardware Interface Description
3.10 Control Signals
SDPORT=4
0
ms
appr.
34ms
(depends
on
BATT+
capacitors
appr.
1.5s
appr.
4.0s...4.5s
3.10.6
RING0 (ASC0), WAKEUP and LCI_IND Startup Behavior
Table 24 shows the startup behavior of the control lines described in the above sections.
Power startup undefined
ASC0 set up (by firmware)
1st init (power on reset)
2nd init (startup phase)
ASC0 ready (by firmware)
URC Wake up signalling
Firmware start
„SYSSTART“
Sleep mode
CTS0
RXD0
RING0
1)
1)
„keep“
DSR0
DCD0
TXD0
RTS0
DTR0
WAKEUP
1)
1)
„keep“
2)
LCI_IND
0.6ms 0.6ms t
151ms
2.6ms
100ms 1)
undefined (port not supplied)
Pull up (appr. 100k)