Datasheet
73M1866B/73M1966B Data Sheet DS_1x66B_001
38 Rev. 1.6
Throughout this document, type W is read/write, type WO is write only and type R is read only. Registers
and bits are defined as 0x16[3:0], where 0x16 is the register address and the numbers in square brackets
specify the address bits. The bit order is [msb – lsb] for a field. For example, [3:0] means bits 3 through 0
of a particular field.
Table 32: Alphabetical Bit Map
Bit Name
Register
Page
Default
Type
Category
ACZ
ADJ
ATEN
CIDM
CMRXG1/0
CMTXG1/0
CMVSEL
DAA1/0
DCIV1/0
DET
DIR5
DIR6
DIR7
DISNTR
DTST1/0
ENAC
ENAPOL
ENDC
ENDET
ENDT
ENFEH
ENFEL
ENGPIO7
ENGPIO6
ENGPIO5
ENLPW
ENLVD
ENNOM
ENOID
ENOLD
ENOVD
ENPCLKDT
ENRGDT
ENSHL
ENSYNL
ENUVD
FRCVCO
GPIO5
GPIO6
GPIO7
IDISPD
ILM
ILMON
INDX
LAW
LB
LC
LIN
LOKDET
0x16[3:0]
0x22[6]
0x16[4]
0x15[4]
0x10[1:0]
0x10[3:2]
0x10[4]
0x14[6:5]
0x13[7:6]
0x03[2]
0x04[5]
0x04[6]
0x04[7]
0x15[6]
0x07[1:0]
0x12[5]
0x05[3]
0x12[6]
0x05[2]
0x12[1]
0x0F[7]
0x12[2]
0x05[7]
0x05[6]
0x05[5]
0x02[2]
0x12[3]
0x12[0]
0x15[0]
0x15[7]
0x15[1]
0x05[4]
0x05[0]
0x12[4]
0x05[1]
0x15[2]
0x0E[7]
0x03[5]
0x03[6]
0x03[7]
0x13[1]
0x13[5]
0x1E[7]
0x19[3:0]
0x23[0]
0x24[0]
0x1C[7:1]
0x23[1]
0x0D[7]
68
52
69
75
44
44
44
52
69
76
43
43
43
61
79
69
61
69
76
76
42
70
43
43
43
61
70
70
77
77
77
52
75
70
61
76
42
43
43
43
69
70
70
40
52
79
76
52
42
0000
0
0
0
00
00
0
00
00
0
1
1
1
0
00
0
1
0
0
0
1
0
0
0
0
0
0
0
0
0
0
1
1
0
1
0
0
1
1
1
0
0
0
0
0
0
0
0
0
W
W
W
W
W
W
W
WO
WO
R
W
W
W
WO
W
WO
W
WO
W
WO
W
WO
W
W
W
W
WO
WO
WO
WO
WO
W
W
WO
W
WO
W
W
W
W
WO
WO
R
W
W
W
R
R/W
R
DAA Control Function
PCM Control Function
DAA Control Function
DAA Control Function
Call Progress Monitor
Call Progress Monitor
Call Progress Monitor
PCM Control Function
DAA Control Function
Line Sensing Control
GPIO Control
GPIO Control
GPIO Control
Barrier Control Function
Loopback Control
DAA Control Function
Barrier Control Function
DAA Control Function
Line Sensing Control
Line Sensing Control
Power Management
Current Limiting Detection Control and Status
GPIO Control
GPIO Control
GPIO Control
Barrier Control Function
Current Limiting Detection Control and Status
DAA Control Function
Over-Current Detection Control and Status
Over-Load Detection Control and Status
Over-Voltage Detection Control and Status
PCM Control Function
Ring Detection Function
Current Limiting Detection Control and Status
Barrier Control Function
Under-Voltage Detection Control and Status
Device Clock Management
GPIO Control
GPIO Control
GPIO Control
DAA Control Function
Current Limiting Detection Control and Status
Current Limiting Detection Control and Status
Line-Side Device Register Polling
PCM Control Function
Loopback Control Function
Auxiliary A/D Converter Status
PCM Control Function
Device Clock Management