psb21391 Infineon Technologies Corporation, psb21391 Datasheet - Page 80

• Manufacturer Part Number: psb21391
• Description: Siemens Codec With Upn Transceiver
• Manufacturer: Infineon Technologies Corporation

Data Sheet
Figure 42
State Transition Diagram
Commands initiating unconditional transitions:
RES, SSP, SCP
TO1: 2 ms
TO2: 1 ms
Synchronized
Level Detect
ARL2
RSY
AIL2
i1w
AR
Activation
Activated
Loop 3
PU
AI
Pending
i0
i1
i3
1)
1)
i2
ARL
AR
i0
i2
AR
AR
AR
AR
DI
DI
DI
i0
i0
i2
i4
3)
i4
DI
TIM
DI
TIM
i0*TO1
ix
ix
ARL
AR
Deactivation
Deactivated
DC
DR
i0
Pending
i0
i0
AR
DI
i0
i0
DI*TO2
TIM
TIM*TO2
DI
DR RES
i0
RESET
Reset
70
*
2)
1)
2)
3)
TIM
Indication depends on received S bit:
S=’0’:
S=’1’:
Possible Reset sources:
C/I command RESET,
software reset SRES.RES_TR or
reset from pin RST
Loop 3 see next figure
DI
AR
Power-Up
i0
PU TIM
i0
AR
ARL2 or AIL2 respectively
i0
or AI respectively
DI
TIM
Test Mode i
TMA
it
i
PSB 21391
PSB 21393
SCP
SSP
statem_te_upn.vsd
Interfaces
SCP
SSP
2001-03-07
*