HFC-S2M Cologne Chip AG, HFC-S2M Datasheet - Page 113

• Manufacturer Part Number: HFC-S2M
• Description: Isdn HDLC Fifo Controller With Primary Rate Interface
• Manufacturer: Cologne Chip AG

3.5 Subchannel Processing
Data transmission between a FIFO and the connected HFC-channel can be controlled by
the subchannel processor. The behavior of this functional unit depends on the selected data
March 2003 (rev. A)
HFC-E1
➌ FIFO to multiple E1 time slots
The last settings connect one FIFO with two E1 time slots in transmit and in receive
direction. So both FIFOs have a data rate of 16 kByte/s.
R_FSM_IDX
A_CON_HDLC[3] : V_DATA_FLOW
A_CHANNEL[3]
R_SLOT
A_SL_CFG[21,TX] : V_CH_DIR1
A_FIFO_SEQ[32] : V_NEXT_FIFO_DIR
R_FSM_IDX
A_CON_HDLC[4] : V_DATA_FLOW
A_CHANNEL[4] : V_CH_DIR0
A_FIFO_SEQ[4] : V_NEXT_FIFO_DIR
R_FSM_IDX
A_CON_HDLC[5] : V_DATA_FLOW
A_CHANNEL[5] : V_CH_DIR0
A_FIFO_SEQ[5] : V_NEXT_FIFO_DIR
R_FSM_IDX
A_CON_HDLC[6] : V_DATA_FLOW
A_CHANNEL[6] : V_CH_DIR0
A_FIFO_SEQ[6] : V_NEXT_FIFO_DIR
R_FSM_IDX
A_CON_HDLC[7] : V_DATA_FLOW
A_CHANNEL[7] : V_CH_DIR0
A_FIFO_SEQ[7] : V_SEQ_END
: V_IDX
: V_CH_NUM0
: V_NEXT_FIFO_NUM
: V_SEQ_END
: V_IDX
: V_CH_NUM0
: V_NEXT_FIFO_NUM
: V_SEQ_END
: V_IDX
: V_CH_NUM0
: V_NEXT_FIFO_NUM
: V_SEQ_END
: V_IDX
: V_CH_NUM0
: V_IDX
: V_CH_DIR0
: V_CH_NUM0
: V_SL_DIR
: V_SL_NUM
: V_CH_NUM1
: V_NEXT_FIFO_NUM
: V_SEQ_END
Data Sheet
Data flow
7
’100’
1
1
20
’100’
0
1
’100’
1
0
’100’
0
1
4
17
14
0
5
17
14
0
6
20
14
0
3
’011’
0
15
0
21
0
15
0
14
0
(FIFO
(list index 7, FIFO[14,RX])
(receive HFC-channel)
(HFC-channel #20)
(end of chain)
(FIFO
(next: receive FIFO)
(FIFO
(next: transmit FIFO)
(FIFO
(next: receive FIFO)
(list index 4, FIFO[14,TX])
(transmit HFC-channel)
(HFC-channel #17)
(next: FIFO #18)
(continue)
(list index 5, FIFO[14,RX])
(receive HFC-channel)
(HFC-channel #17)
(next: FIFO #14)
(continue)
(list index 6, FIFO[14,TX])
(transmit HFC-channel)
(HFC-channel #20)
(next: FIFO #14)
(continue)
(FIFO
(list index 3, FIFO[13,TX])
(transmit HFC-channel)
(HFC-channel #15)
(transmit slot)
(slot #21)
(transmit HFC-channel)
(HFC-channel #15)
(next: transmit FIFO)
(next: FIFO #14)
(continue)
E1)
E1)
E1)
E1)
PCM)
Cologne
Chip
113 of 272