stlc3040 STMicroelectronics, stlc3040 Datasheet - Page 15

• Manufacturer Part Number: stlc3040
• Description: Subscriber Line Interface Codec Filter, Cofislic
• Manufacturer: STMicroelectronics

Figure 8: GCI Monitor Channel messaging examples.
RING = Sets COFISLIC into ringing state.
CONV = Sets COFISLIC into power up state.
TIM = Timing bit to control the timing of ringing
and meterpulses.
M
E
A
= 0 COFISLIC is in a power down state.
= 1 COFISLIC in power up state.
= 0 COFISLIC is in ringing pause
= 1 COFISLIC is in ringing
= 0 COFISLIC is not in ringing state.
= 1 COFISLIC is in ringing state.
M1 = start Byte
M
E
A
X
or no meterpulse is on.
or output of a meterpulse is running.
X
M1
Ready for
a message
M1
1st byte
(M1)
Ready
for a message
M1
TWO BYTES MESSAGE ABORTED ON THE SECOND AND RETRANSMITTED
pre-ack
(M1)
(M1)
1st byte
M1
M2
TWO BYTES MESSAGE - NORMAL TRANSMISSION
pre-ack
(M1)
ack
(M1)
(M2)
2nd byte
M2
M2
pre-ack
(M2)
E & A BITS TIMING
(M1)
ack
X
2nd byte
(M2)
M2
abort
(M2)
(X)
3rd byte??
IO1, IO2 define the value for the programmable
Input/Output pins (7, 8) if programmed as output
pins by CR2 register.
O1 sets value for fixed output pin 39
(M2)
pre-ack
IO1 = 0 The related pin 7 at the digital interface
IO2 = 0 The related pin 8 at the digital interface
= 1 The related pin 8 at the digital interface
X
Ready for
retransmission
= 1 The related pin 7 at the digital interface
X
(or abort ack)
EOM
of the COFISLIC is set to a logic 0
of the COFISLIC is set to a logic 0
of the COFISLIC is set to a logic 1
of the COFISLIC is set to a logic 1
X
ack
(M2)
3rd byte??
(X)
X
X
pre-ack??
(X)
EOM
M1
X
1st byte
(M1)
Ready for
a new message
M1
STLC3040
pre-ack
(M1)
M2
15/49