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IDT82V2048 OCTAL T1/E1 SHORT HAUL LINE INTERFACE UNIT INDUSTRIAL TEMPERATURE RANGES
3 PROGRAMMING INFORMATION
3.1 REGISTER LIST AND MAP
There are 23 primary registers (including an Address Pointer Control
Register and 16 expanded registers in the device).
Whatever the control interface is, 5 address bits are used to set the
registers. In non-multiplexed parallel interface mode, the five dedicated
address bits are A[4:0]. In multiplexed parallel interface mode, AD[4:0]
carries the address information. In serial interface mode, A[5:1] are used
to address the register.
The Register ADDP, addressed as 11111 or 1F Hex, switches
between primary registers bank and expanded registers bank.
By setting the register ADDP to ‘AAH’, the 5 address bits point to the
expanded register bank, that is, the expanded registers are available. By
clearing register ADDP, the primary registers are available.
Primary Registers, whose addresses are 16H to 1EH, are reserved.
Expanded registers, whose addresses are 10H to 1EH, are used for test
and must be set to ‘0’ (default).
Table-15 Primary Register List
Address
Register R/W Explanation
Hex Serial Interface A7-A1 Parallel Interface A7-A0
00 XX00000 XXX00000
ID R Device ID Register
01 XX00001 XXX00001
ALB R/W Analog Loopback Configuration Register
02 XX00010 XXX00010
RLB R/W Remote Loopback Configuration Register
03 XX00011 XXX00011
TAO R/W Transmit All Ones Configuration Register
04 XX00100 XXX00100
LOS R Loss of Signal Status Register
05 XX00101 XXX00101
DF R Driver Fault Status Register
06 XX00110 XXX00110
LOSM R/W LOS Interrupt Mask Register
07 XX00111 XXX00111
DFM R/W Driver Fault Interrupt Mask Register
08 XX01000 XXX01000
LOSI R LOS Interrupt Status Register
09 XX01001 XXX01001
DFI R Driver Fault Interrupt Status Register
0A XX01010 XXX01010
RS W Software Reset Register
0B XX01011 XXX01011
PMON R/W Performance Monitor Configuration Register
0C XX01100 XXX01100
DLB R/W Digital Loopback Configuration Register
0D XX01101 XXX01101
LAC R/W LOS/AIS Criteria Configuration Register
0E XX01110 XXX01110
ATAO R/W Automatic TAOS Configuration Register
0F XX01111 XXX01111
GCF R/W Global Configuration Register
10 XX10000 XXX10000
TSIA R/W Indirect Address Register for Transmit Template Select
11 XX10001 XXX10001
TS R/W Transmit Template Select Register
12 XX10010 XXX10010
OE R/W Output Enable Configuration Register
13 XX10011 XXX10011
AIS R AIS Status Register
14 XX10100 XXX10100
AISM R/W AIS Interrupt Mask Register
15 XX10101 XXX10101
AISI R AIS Interrupt Status Register
16 XX10110 XXX10110
Reserved
17 XX10111 XXX10111
18 XX11000 XXX11000
19 XX11001 XXX11001
1A XX11010 XXX11010
1B XX11011 XXX11011
1C XX11100 XXX11100
1D XX11101 XXX11101
1E XX11110 XXX11110
1F XX11111 XXX11111
ADDP R/W
Address pointer control Register for switching between primary register bank and
expanded register bank
