ASAHI KASEI
[AK2572]
Table 9-6 Register Configuration (Continued)
Register
Address
02h
02h
Function
APC FF setting
APC FB setting
Bit Form R/W
Note
R_APC_FF_SET [7:6]
R_APC_FB_SET [5:4]
R_APC_INIT_SET [3]
2
2
1
U
U
U
R/W
R/W
R/W
Refer to Table 4-6
Refer to Table 4-6
0: OFF, 1: ON
02h
APC_FB initial value setting
0:Gain＝1
1:Gain＝1.2/2.2
0:Gain＝1/2, 1: Gain＝1
0:Gain＝1/10, 1: Gain＝1
0:160ms, 1:2ms [Typ.]
(Refer to Table 8-1)
R_DAC3_GAIN [2]
02h
V-DAC3 gain setting
1
U
R/W
R_DAC2_GAIN [1]
R_DAC1_GAIN [0]
R_TIMER
_OPTALM [6]
R_EXTALM2_POL [5]
R_EXTALM1_POL [4]
02h
02h
I-DAC2 gain setting
1
1
U
U
R/W
R/W
I-DAC1 gain setting
OPTALM mask time setting
for SFP_TXFAULT detection
EXTALM2 polarity setting
EXTALM1 polarity setting
Temperature difference
03h
1
U
R/W
03h
03h
1
1
U
U
R/W 0:“H” active, 1:“L” active
R/W 0:“H” active, 1:“L” active
0:OFF, 1:ON
Refer to Section 7.2
R_TEMP_DET [3]
03h
1
U
R/W
detection at Shutdown release
0:OFF, 1:ON
[2] : V-DAC3,
[1] : I-DAC2
R_DAC_SET [2:0]
03h
DAC operation setting
3
U
R/W
[0] : I-DAC1
R_OPTALM [7:6]
R_PDGAIN [5:0]
04h
04h
OPTALM threshold
PD gain setting
EXTALM2 setting for
TXFAULT
EXTALM1 setting for
TXFAULT
2
6
U
U
R/W 0:1/3, 1:1/4, 2:1/6, 3:1/7
R/W
Refer to Table 4-3
R_EXTALM2_SET [5]
R_EXTALM1_SET [4]
05h
05h
1
1
1
U
U
R/W 0:OFF, 1:ON (Target)
R/W 0:OFF, 1: ON (Target)
CURRALM setting for
TXFAULT
R_CURRALM_SET [3] 05h
U
U
U
R/W 0:OFF, 1: ON (Target)
R/W 0:OFF, 1: ON (Target)
R_OPTALM_SET [2]
R_TIMER
_EXTALM2 [1]
R_TIMER
05h OPTALM setting for TXFAULT 1
0:0ms , 1:2ms [Typ.]
（Refer to Table 8-2）
EXTALM2 mask time setting
for SFP_TXFAULT detection
EXTALM1 mask time setting
for SFP_TXFAULT detection
05h
05h
1
1
R/W
0:0ms , 1:2ms [Typ.]
（Refer to Table 8-2）
U
U
R/W
_EXTALM1 [0]
R_TEMPALM_SET [7] 06h Set TEMPALM for TXFAULT 1
Window setting for
R_TEMP_WIN [7:0]
R/W 0:OFF, 1: ON (Target)
Refer to Section 7.2 and
Table 4-10
07h
Temperature difference
detection
8
U
R/W
DAC setting for Imod (Data
setting for I-DAC1, V-DAC3)
APC_FB dividing value for
Imod
APC_FB dividing value for
Ibias
APC FB initial value
APC target setting
APC_FF value for Imod
APC_FF value for Ibias
R _MODV_SEL [7]
R_MOD_FBRT [6:0]
R_BIAS_FBRT [6:0]
08h
08h
09h
1
7
7
U
U
U
R/W
Refer to Table 3-4
R/W Refer to Section 4.2.4
R/W Refer to Section 4.2.4
R/W Refer to Table 4-10 [*2]
R/W
R/W
R/W
R_APC_FBIV [7:0]
R_APC_TRGT [4:0]
R_MOD_FF [7:0]
R_BIAS_FF [7:0]
0Ah
0Bh
0Ch
0Dh
8
5
8
8
U
U
U
U
Refer to Table 4-4
I-DAC1 or V-DAC3
I-DAC2
V-DAC3 or I-DAC1
(DAC isn’t for Imod)
R_EXTRA [7:0]
0Eh
0Fh
0Fh
EXTRA DAC value
8
4
4
U
U
U
R/W
R/W
R/W
R_CURRALM
_BIAS [7:4]
R_CURRALM
_MOD [3:0]
CURRALM setting for Ibias
CURRALM setting for Imod
Refer to Section 6.3
Refer to Section 6.3
-41-
< MS0290-E-01>
2004/8
AKM [ ASAHI KASEI MICROSYSTEMS ]
