IBM3229P2035
Advance
IBM Packet Routing Switch Serial Interface Converter
4.1.1.12 Y Plane Events 1 Register (Event 1 _Y)
Unused
Unused
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10
9
8
7
6
5
4
3
2
1
0
Reset Output Status (Power-on-Reset, Software Reset Path Y)
Address in Word Mode
All ’0’s
x'30’
Address in Byte Mode
x'30 to 3B’
Access Type
Read/Write
Bits /
Word
Bits /
Bytes
Name
Description
Notes
31-24
23-16
15
7-0
7-0
7
Unused
Unused
Unused
1
Transmit Synchronization request from the SDC to observe the sta-
tus of DASL (when the picocode needs to reset DASL transmitter)
14
6
YTX_SYNCH_REQ_OUT
YDARDInd
2
1
0
1
Normal mode
DASL receiver is synchronized and ready to receive data. It is read
by the microprocessor to assert APA @30 bit 19 to inform the
switch that the adapter is synchronized and it can stop the trans-
mission of the synchronization packets. Remains ‘ON’ if nothing
abnormal occurs.
13
5
0
1
DASL receiver is not synchronized
At least one data packet has been sent by IDI to the switch (debug
purpose)
12
11
4
3
YUMRX
YUMTX
2
2
0
1
No data packet has been forwarded by IDI to the switch
At least one data packet has been detected at EDI from the switch
(debug purpose)
0
1
No data packet has been detected by EDI
SDC Interruption: a parity error occurred during the transfer
between the SDC and the instruction or data store. Remains ‘ON’
as long as the condition is present and that the DASL is not reset.
10
9
2
1
YM3 IRQ
1
0
1
SDC operation is error free
Egress Buffer Overrun, occurs upon abnormal condition and
requires chip re-initialization
YESBover
1,3
0
No buffer overrun (normal operation)
1. I = an interrupt is raised because of error or status change.
2. S = status and is reported through polling.
3. In case of buffer overrun all packets are discarded.
prssi.02.fm
Converter Configuration Table Registers
Page 73 of 154
March 1, 2001
IBM [ IBM ]
