Network Router User Manual

TMS380C26
NETWORK COMMPROCESSOR
SPWS010A–APRIL 1992–REVISED MARCH 1993
POST OFFICE BOX 1443 • HOUSTON, TEXAS
77251–1443
23
Adapter-Internal Pointers for Token-Ring
†
ADDRESS DESCRIPTION
>00.FFF8
‡
Pointer to software raw microcode level in chapter 0.
>00.FFFA
‡
Pointer to starting location of copyright notices. Copyright notices are separated by a >0A character and
terminated by a >00 character in chapter 0.
>01.0A00 Pointer to burned-in address in chapter 1.
>01.0A02 Pointer to software level in chapter 1.
>01.0A04 Pointer to TMS380C26 addresses in chapter 1:
Pointer + 0 node address.
Pointer + 6 group address.
Pointer + 10 functional address.
>01.0A06 Pointer to TMS380C26 parameters in chapter 1:
Pointer + 0 physical drop number.
Pointer + 4 upstream neighbor address.
Pointer + 10 upstream physical drop number.
Pointer + 14 last ring poll address.
Pointer + 20 reserved.
Pointer + 22 transmit access priority.
Pointer + 24 source class authorization.
Pointer + 26 last attention code.
Pointer + 28 source address of the last received frame.
Pointer + 34 last beacon type.
Pointer + 36 last major vector.
Pointer + 38 ring status.
Pointer + 40 soft error timer value.
Pointer + 42 ring interface error counter.
Pointer + 44 local ring number.
Pointer + 46 monitor error code.
Pointer + 48 last beacon transmit type.
Pointer + 50 last beacon receive type.
Pointer + 52 last MAC frame correlator.
Pointer + 54 last beaconing station UNA.
Pointer + 60 reserved.
Pointer + 64 last beaconing station physical drop number.
>01.0A08 Pointer to MAC buffer (a special buffer used by the software to transmit adapter generated MAC frames) in chapter 1.
>01.0A0A Pointer to LLC counters in chapter 1:
Pointer + 0 MAX_SAPs.
Pointer + 1 open SAPs.
Pointer + 2 MAX_STATIONs.
Pointer + 3 open stations.
Pointer + 4 available stations.
Pointer + 5 reserved.
>01.0A0C Pointer to 4-/16-Mbps word flag. If zero, then 4 Mbps. If nonzero, then the adapter is set to run at 16-Mbps data rate.
>01.0A0E Pointer to total TMS380C26 RAM found in Kbytes in RAM allocation test in chapter 1.
†
This table describes the pointers for release 1.00 and 2.x of the TMS380C26 software.
‡
This address valid only for microcode release 2.x.