AK2540 Datasheet, PDF (22/33 Pages) Asahi Kasei Microsystems – Quad T1 Transceiver

ASAHI KASEI
REGISTER DESCRIPTIONS
[AK2540]
REGISTER MAP
*A7-A4=”0”
Address
A3 A2 A1 A0
Bit7
<AD7>
Bit6
<AD6>
Bit5
<AD5>
Function
Bit4
Bit3
<AD4> <AD3>
Bit2
<AD2>
Status Register (READ ONLY)
0 0 0 0 DPM4
DPM3
DPM2
DPM1
DFM4
(0)
(0)
(0)
(0)
(0)
0 0 0 1 LOTC4 LOTC3 LOTC2 LOTC1
-
(1)
(1)
(1)
(1)
0 0 1 0 ALOS4 ALOS3 ALOS2 ALOS1 LOS4
(1)
(1)
(1)
(1)
(1)
DFM3
(0)
-
LOS3
(1)
Mask Control Register (WRITE/READ)
0 0 1 1 MDPM4 MDPM3 MDPM2 MDPM1 MDFM4 MDFM3
(1)
(1)
(1)
(1)
(1)
(1)
0 1 0 0 MLOTC4 MLOTC3 MLOTC2 MLOTC1
-
-
(1)
(1)
(1)
(1)
0 1 0 1 MALOS4 MALOS3 MALOS2 MALOS1 MLOS4 MLOS3
(1)
(1)
(1)
(1)
(1)
(1)
0 1 1 0 MSK4
MSK3
MSK2
MSK1
-
-
(1)
(1)
(1)
(1)
Channel Control Register (WRITE/READ)
0 1 1 1 LENG21 LENG11 LENG01 RLOOP1 LLOOP1
(0)
(0)
(1)
(0)
(0)
1 0 0 0 LENG22 LENG12 LENG02 RLOOP2 LLOOP2
(0)
(0)
(1)
(0)
(0)
1 0 0 1 LENG23 LENG13 LENG03 RLOOP3 LLOOP3
(0)
(0)
(1)
(0)
(0)
1 0 1 0 LENG24 LENG14 LENG04 RLOOP4 LLOOP4
(0)
(0)
(1)
(0)
(0)
AIS1
(0)
AIS2
(0)
AIS3
(0)
AIS4
(0)
Global Control Register (WRITE/READ)
1 0 1 1 JASELR JASELT POL
RDEN AIS1SEL
-
(0)
(0)
(1)
(0)
(1)
* The other addresses are reserved.
* Initial value is in ( ).
* “<>” shows I/O pin name. Address A0-A3 should be input via AD0-AD3 pins.
Bit1
<AD1>
DFM2
(0)
-
LOS2
(1)
MDFM2
(1)
-
MLOS2
(1)
-
-
-
-
-
-
Bit0
<AD0>
DFM1
(0)
LOMC
(1)
LOS1
(1)
MDFM1
(1)
-
MLOS1
(1)
MLOMC
(1)
PD1
(1)
PD2
(1)
PD3
(1)
PD4
(1)
-
MS0012-E-00
22
2000/1