AX88850 ASIX [ASIX Electronics Corporation], AX88850 Datasheet - Page 31

• Manufacturer Part Number: AX88850
• Description: 100BASE-TX/FX Repeater Controller
• Manufacturer: ASIX [ASIX Electronics Corporation]

4.10 Device ID Register (DEVICEID)
Page 0 Address 5h
* Note : Host can’t override these signals.
4.11 Silicon Revision Register
Page 1 Address 5h
D15-D13
D12-D8
D15-D0
D4-D0
Bit
D7
D6
D5
Bit
AX88850
Temp
PORT_NUM
/IR_ACT_EN
/TO_ID_CLR
/DIS_DAISY
RPTR_ID
SI_REV[15:0]
Bit Name
Bit Name
Access
Access
*R/W Port Number : These bit indicate the last or current receiving port number.
*R/W Inter Repeater Active Input Pin Enable : This bit active low to enable
R/W Temporary Registers : reserved for system programer used.
R/W Time Out to Clear repeater ID : Within the time out period, if no daisy
R/W Disable RID Daisy-chain Input: No matter what kind of data input from
R/W Repeater ID : At the rising edge of /RST , the value of RID[4:0] are
RO
/IR_ACTI[7:0] pin as inter-repeater carrier sense detection input.
Otherwise, /IR_ACTI[7:0] pins is disable and only perform power-on
configuration inputs.
chain repeater ID input. The repeater ID will be clear to RID=0 .
Otherwise, the repeater ID will remain the previous value ( power on
configured value or previous daisy chain reconfigured value).The tome
out period is about 4 to 5 second.
DAISY_IN pin the RPTR_ID can’t be override.
latched in this register as D[4:0]. The setting of RID[2:0]can be override
according to the data from serial daisy-chain DAISY_IN pin input except
/DIS_DAISY is configured to “low” .
Note that in system application, the maximum of 8 devices can be
cascade. Therefore only RID[2:0] can be variation and the RID[4:3] must
be keep the same value in the same system and avoid conflicted with PHY
device ID.
Silicon Reversion : Currently reads all 1‘s
31
Bit Description
Bit Description
ASIX ELECTRONICS CORPORATION
PRELIMINARY