AK2548 Datasheet, PDF (18/30 Pages) Asahi Kasei Microsystems – 7 channel E1 Transceiver

ASAHI KASEI
[AK2548]
REGISTER DESCRIPTION
REGISTER MAP
*A7-A4=“0”
Address
A3 A2 A1 A0
Bit7
<AD7>
Bit6
<AD6>
Bit5
<AD5>
Function
Bit4
Bit3
<AD4> <AD3>
Bit2
<AD2>
Bit1
<AD1>
Bit0
<AD0>
Status Register (READ ONLY)
0 0 0 0 LOS7
LOS6
LOS5
LOS4
LOS3
LOS2
LOS1
0
(1)
(1)
(1)
(1)
(1)
(1)
(1)
0 0 0 1 LOTC7 LOTC6 LOTC5 LOTC4 LOTC3 LOTC2 LOTC1 LOMC
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
Mask Control Register (WRITE/READ)
0 0 1 0 MLOS7 MLOS6 MLOS5 MLOS4 MLOS3 MLOS2 MLOS1 RDEN
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(0)
0 0 1 1 MLOTC7 MLOTC6 MLOTC5 MLOTC4 MLOTC3 MLOTC2 MLOTC1 MLOMC
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
Channel Control Register (WRITE/READ)
0 1 1 0 Reserved TAOS1
EC1 RLOOP1 LLOOP1 POLN1
(0)
(0)
(0)
(0)
(1)
0 1 1 1 Reserved TAOS2
EC2 RLOOP2 LLOOP2 POLN2
(0)
(0)
(0)
(0)
(1)
1 0 0 0 Reserved TAOS3
EC3 RLOOP3 LLOOP3 POLN3
(0)
(0)
(0)
(0)
(1)
1 0 0 1 Reserved TAOS4
EC4 RLOOP4 LLOOP4 POLN4
(0)
(0)
(0)
(0)
(1)
1 0 1 0 Reserved TAOS5
EC5 RLOOP5 LLOOP5 POLN5
(0)
(0)
(0)
(0)
(1)
1 0 1 1 Reserved TAOS6
EC6 RLOOP6 LLOOP6 POLN6
(0)
(0)
(0)
(0)
(1)
1 1 0 0 Reserved TAOS7
EC7 RLOOP7 LLOOP7 POLN7
(0)
(0)
(0)
(0)
(1)
*Other address is reserved.
* Initial value is in ( ).
* “<>” show I/O pin name. Address A0-A3 should be input via AD0-AD3 pins.
MSK1
(1)
MSK2
(1)
MSK3
(1)
MSK4
(1)
MSK5
(1)
MSK6
(1)
MSK7
(1)
PD1
(1)
PD2
(1)
PD3
(1)
PD4
(1)
PD5
(1)
PD6
(1)
PD7
(1)
C0028-E-00
18
1999/9