Good morning, I'm working with omap3530 microcontroller. I wish have two ports on my microprocessor. I saw that with KSZ8842M device this is possible, but I have some question about the hardware connection. For the asynchronous connection, I need the ARDY (Asynchronous ready)signal to inform the wait time to Host when the buffer is close to full. So in my microprocessor, it has to have this capability to handle the wait time.
CAN I DO WITH THE "ARDY" SIGNAL?
WHERE CAN I CONNECT THIS SIGNAL?
I am using this assignation.
ARM3530 KSZ8842M device
*******************************************
ADD
BUS: EM_A[1...10] -----> A[1...7]
Dat
Bus: EM_D[0...15] -----> D[0...15]
ENABLE
B: EM_NBE0 -----> BE0N
EM_NBE1
-----> BE1N
A_ENABLE:
NCS_ETH0 -----> AEN
W_ENABLE:
NWE -----> WRN
R_ENABLE:
NRE -----> NWR
????????:
????? -----> ARDY:(may be used when interfacing asynchronous buses to extend bus access cycles. It is asynchronous to the host CPU or bus clock)
IRQ:
ETH0_IRQ -----> INTRN
GND
-----> ADSN, BCLK
VCC
-----> RDYRTNN, SWR, CYCLEN,VLBUSN
*************************************************************
Thanks.
