HFC-S2M Cologne Chip AG, HFC-S2M Datasheet - Page 106

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

HFC-E1
106 of 272
➊ FIFO-to-E1
➋ FIFO-to-PCM
HFC-channel and FIFO numbers can be chosen independently from each other. This
is shown with the FIFO-to-E1 connection:
The FIFO-to-PCM connection blocks two E1 time slots and it requires two slot config-
uration settings:
#12
#12
#13
#13
#11
#11
FIFOs
#4
#4
#5
#5
RX
RX
RX
RX
RX
TX
TX
TX
TX
TX
A_CON_HDLC[4,TX] : V_DATA_FLOW
A_CHANNEL[4,TX] : V_CH_DIR0
A_CON_HDLC[4,RX] : V_DATA_FLOW
A_CHANNEL[4,RX] : V_CH_DIR0
R_FIFO
R_FIFO
: V_FIFO_DIR
: V_FIFO_NUM
: V_CH_NUM0
Figure 3.7: CSM example
: V_FIFO_DIR
: V_FIFO_NUM
: V_CH_NUM0
4
2
1
Data Sheet
HFC-channel
Data flow
subchannel
subchannel
processor
processor
#21 TX
#21 RX
#0
#0
#8
#8
#20
#20
0
’100’
0
4
0
1
’100’
1
4
0
RX
RX
3
TX
TX
RX
TX
(FIFO
(transmit HFC-channel)
(transmit FIFO)
(FIFO #4)
(HFC-channel #0)
(FIFO
(receive FIFO)
(FIFO #4)
(receive HFC-channel)
(HFC-channel #0)
E1)
E1)
March 2003 (rev. A)
PCM slot
E1 slot
#20
#20
#21
#21
#17
#17
#0
#0
#8
#8
#7
#7
Cologne
RX
RX
RX
RX
RX
RX
Chip
TX
TX
TX
TX
TX
TX