AX88871AP ASIX [ASIX Electronics Corporation], AX88871AP Datasheet - Page 20

• Manufacturer Part Number: AX88871AP
• Description: 10/100BASE Dual Speed Bripeater Controller
• Manufacturer: ASIX [ASIX Electronics Corporation]

4.0 INTERNAL REGISTERS
4.1 Configuration Register (CONFIG)
4.2 Repeater ID Register
D2-D0
D3-2
D14
D13
D12
D11
D10
Bit
Bit
D9
D8
D7
D6
D5
D4
D1
D0
AX88871AP Bripeater
/HALF10
OPT[0]
OPT[1]
TXM_MODE
OPT[3]
OPT[4]
OPT[6]
OPT[7]
MODE
ST_FW
ENTRIES
MEM_SIZE[1]
MEM_SIZE[0]
/IR_ACT_EN
/DIS_DAISY
RID[2:0]
Bit Name
Bit Name
Access
Access
R/W Half-duplex mode in 10Mbps : “low” resister to 10Mbps PHY in half-
R/W OPT[0] : Option for LED display. Default ‘high’ for normal operation.
R/W OPT[1] : Option for partition schime. Default ‘high’ for normal
R/W TXM_MODE : Option for internal used. Default ‘high’ user may pull the
R/W OPT[3] : Option for internal used. Please keep the pin with default value.
R/W OPT[4] : No Used.
R/W OPT[6] : Option for external device type to connect to port 6. Default
R/W OPT[7] : Option for external device type to connect to port 7. Default
R/W MODE
R/W ST_FW
R/W ENTRIES
R/W
R/W Inter Repeater Active Input Pin Enable : This input active low to enable
R/W /DIS_DAISY : Default pull-up to enable daisy chain function. To disable
R/W Repeater ID : At the rising edge of /RST , the value of RID[2:0] are
duplex mode. “high” resister to 10Mbps PHY in full-duplex mode.
User may pull the pin ‘low’ with 10K ohm resister to force 10M or 100M
LED disable when all the ports are the same speed condition.
operation. User may pull the pin ‘low’ with 10K ohm resister to force
hardly enter partition state.
pin ‘low’ with 10K ohm resister for reserve transmition mode alternaty.
‘high’ is for PHY type device. Otherwise, ‘low’ for bridge, switch or
MAC type device.
‘high’ is for PHY type device. Otherwise, ‘low’ for bridge, switch or
MAC type device.
MODE
ST_FW
ENTRIES
/HIR_ACTI[7:0] pins as inter-repeater carrier sense detection input.
Otherwise, /HIR_ACTI[7:0] pins are disabled.
daisy chain function pull the pin down external.
latched in this register as D[2:0]. The setting of RID[2:0]can be override
according to the data from serial daisy-chain DAISY_IN pin input .
Note that in system application, the maximum of 8 devices can be
cascade.
MEM_SIZE[1] MEM_SIZE[1]
1
1
0
0
= 0 : Single chip repeater application.
= 1 : Multiple chips cascaded repeater application.
=1 : Store-n-Forward mode
= 0 : fragment-free mode
= 0 : 1024 entries supported
= 1 : 256 entries supported
20
1
0
1
0
Bit Description
Bit Description
ASIX ELECTRONICS CORPORATION
SIZE (K)
32K
64K
128K
256K