ISL35822LPIK【PDF 25/75 页】IC CLOCK/DATA RECOVERY 192EBGA-B

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Sheet目录2001

Note (1): These 1-byte register values are merely copied by the ISL35822 from the I2C address space on RESET (if enabled), on demand, or periodically under the

control of Register 1.A100’h (Table 38).

Note (2): If the ‘Indirect DOM Enable’ bit (Register bit 1.C018’h.2 Table 51) is not set, a four-lane external DOM device is expected to determine the “Farthest out of

range” or “Representative” values for these registers, according to the rules of Note 1 to Table 28 in the XENPAK MSA Rev 3.0 specification. A single one-

lane DOM device system will provide the values from the single DOM device here only. If the ‘Indirect DOM Enable’ bit is set, “Representative” is defined by

Note (3): If the ‘Indirect DOM Enable’ bit (Register bit 1.C018’h.2 Table 51) is not set, a four-lane external DOM device is expected to provide the Lane-by-Lane data.

For a single one-lane DOM device system these values are 00’h. The Lane-by-Lane data is obtained from the I2C address space via the pointers defined in

Registers 1.C019:C’h (Table 53 & Table 54), if the ‘Indirect DOM Enable’ bit is set (Register 1.C018’h Table 51).

Note (1): This 1-byte register value is merely copied by the ISL35822 from the I2C address space on Power-up or RESET, or on a periodic or on-demand direct DOM

update operation (i.e. with Register bit 1.C018’h.2 Table 51 not set) under the control of Register 1.A100’h (Table 38). The ISL35822 takes no action as a

result of the values copied.

Note (2): Assumes NVR/DOM read succeeds

1.41170:1

1.A0D2:3

210:211

Reserved

MSB:LSB

1.41172:3

1.A0D4:5

212:213

Lane 1 Laser Bias Current(3)

MSB:LSB

1.41174:5

1.A0D6:7

214:215

Lane 1 Laser Output Power(3)

MSB:LSB

1.41176:7

1.A0D8:9

216:217

Lane 1 Receive Optical Power(3)

MSB:LSB

1.41178:83

1.A0DA:F

218:223

Reserved

1.41184:5

1.A0E0:1

224:225

Lane 2 Transceiver Temperature (3)

MSB:LSB

1.41186:7

1.A0E2:3

226:227

Reserved

MSB:LSB

1.41188:9

1.A0E4:5

228:229

Lane 2 Laser Bias Current(3)

MSB:LSB

1.41190:1

1.A0E6:7

230:231

Lane 2 Laser Output Power(3)

MSB:LSB

1.41192:3

1.A0E8:9

232:233

Lane 2 Receive Optical Power(3)

MSB:LSB

1.41194:9

1.A0EA:F

234:239

Reserved

1.41200:1

1.A0F0:1

240:241

Lane 3 Transceiver Temperature (3)

MSB:LSB

1.41202:3

1.A0F2:3

242:243

Reserved

MSB:LSB

1.41204:5

1.A0F4:5

244:245

Lane 3 Laser Bias Current(3)

MSB:LSB

1.41206:7

1.A0F6:7

246:247

Lane 3 Laser Output Power(3)

MSB:LSB

1.41208:9

1.A0F8:9

228:249

Lane 3 Receive Optical Power(3)

MSB:LSB

1.41210:5

1.A0FA:F

250:255

Reserved

Table 33. XENPAK DOM MONITORED A/D VALUES REGISTER COPY (Continued)

MDIO XENPAK/XPAK/X2 DOM REGISTER ADDRESSES = 1.41056:41069 & 1.41152:41215 (1.A060:A06D’h & 1.A0C0:A0FF)

BYTE ADDRESS

MEMORY

ADDRESS

DESCRIPTION(1)

DEFAULT

R/W

DETAILS

DEC

HEX

Table 34. XENPAK OPTIONAL DOM STATUS BITS REGISTER

MDIO REGISTER, ADDRESS = 1.41070 (1.A06E’h)

BIT

NAME

SETTING

DEFAULT

R/W

DESCRIPTION(1)

1.41070.15:1

Reserved

0000’h

1.41070.0

Data_Ready_Bar

1 = Not Ready

0 = Ready

0’b(2)

High during power-up and first

NVR/DOM read. After that set low.

ISL35822

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