AX88871AP ASIX [ASIX Electronics Corporation], AX88871AP Datasheet - Page 10

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

2.2 Expansion Bus Interface for 100 Mbps
HIRD[3:0]
or
/LACT[3:0]
/HIRD_V
or
/LACT[4]
/HIRD_ER
or
/LACT[5]
HIRD_CK
or
/LACT[6]
HIRD_ODIR
or
/LACT[7]
/HIR_ACTO[5:0]
or
/LPART[5:0]
/HIR_ACTO[7:6]
or
/LIR_ACT[3:2]
or
/LPART[7:6]
/HIR_ACTI[5:0]
or
NC[5:0]
/HIR_ACTI[7:6]
or
/LIR_ACT[1:0]
or
NC[7:0]
Signal Name
AX88871AP Bripeater
I/O/OC 153-148 INTER REPEATER ACTIVITY IN/OUT: When MODE=” 1” , The local
I/O/OC 155-1154 INTER REPEATER ACTIVITY IN/OUT: When MODE =” 1” and STACK
I/O/PU 146-145 INTER REPEATER ACTIVITY IN : When MODE =” 1” and STACK =” 1”
Type Pin No.
I/O/Z
I/O/Z
I/O/Z
I/O/Z
I/PU
/PU
/PU
/PU
/PU
O
165-162 INTER REPEATER DATA : When MODE=” 1” , Nibble data input/output.
144-139 INTER REPEATER ACTIVITY IN: These pins perform the same function
159
160
158
157
Transfer data from the “active” AX88871A to all other “inactive”
AX88871As. The bus-master of the IRD bus is determined by IR_VECT bus
arbitration.
/LACT[3:0] : When MODE=” 0” , Those pins drive activity[3:0] LEDs
directly.
INTER REPEATER DATA VALID : When MODE=” 1” ,This signal reflect
the RX_DV status of the active port across the inter repeater bus. Used to
frame good packets.
/LACT[4] : When MODE=” 0” , This pin drives port 4 activity LED directly.
INTER REPEATER DATA ERROR: When MODE=” 1” ,This signal reflect
the RX_ER status of the active port across the inter repeater bus. Used to track
receive errors from the PHY in real time.
/LACT[5] : When MODE=” 0” , This pin drives port 5 activity LED directly.
INTER REPEATER CLOCK VALID : When MODE=” 1” ,All inter repeater
signals are synchronized to the rising edge of this clock.
/LACT[6] : When MODE=” 0” , This pin drives port 6 activity LED directly.
INTER
MODE=” 1” ,This pin indicates the direction of data for external transceiver.
/LACT[7] : When MODE=” 0” , This pin drives port 7 activity LED directly.
repeater activity appearance, the signal of the related RID (Repeater ID) will
be asserted and as a output pin. All other pins serve as input pins but except
the collision conditions. When collision occurred , the signal of related
(RID-1) pins will also served as outputs and will active during local collision
period. The exception case is when RID = 0, then (RID-1) is replaced with
(RID+1).
/LPART[5:0] : When MODE=” 0” , Those pins drive partition[5:0] LEDs
directly.
=” 1” the function is the same as /HIR_ACTO[5:0].
LOCAL REPEATER ACTIVITY IN/OUT : When MODE =” 1” and STACK
=” 0” the function is the same as /HIR_ACTO[5:0] but for local repeater
activity only.
/LPART[7:6] : When MODE=” 0” , Those pins drive partition[7:6] LEDs
directly.
as /IR_ACTO[7:0] when they serve as input function. Then the
/IR_ACTO[7:0] insert external buffers the input function must be replaced
with /IR_ACTI [7:0].
NC : When MODE=” 0” , Those pins keep no connection.
the function is the same as /HIR_ACTI[5:0].
LOCAL REPEATER ACTIVITY IN/OUT : When MODE =” 1” and STACK
=” 0” the function is the same as /HIR_ACTO[5:0] but for local repeater
activity only.
NC : When MODE=” 0” , Those pins keep no connection.
“High” = IRD[3:0], /IRD_ER, /IRD_V , IRD_CK are Output.
“Low” = IRD[3:0], /IRD_ER, /IRD_V , IRD_CK are Input.
REPEATER
10
DATA
Description
ASIX ELECTRONICS CORPORATION
IN/OUT
DIRECTION
:
When