IBM 3745 Series Service Functions page 35

MSA (Token-Ring/TIC Information)
Field Y
Field Z
UNKNOWN: A non-recoverable error occurred during the
connection/disconnection process, or an MIOC/IOC error
occurred while getting level 1 error status during TRA
selection. Connect/disconnect may be re-tried.
TIC n: Selected TIC number (1 or 2), updated after a TIC selection
(see TRA Functions screen, page 5-6).
Current mode of the selected TIC, updated after a TIC selection or a refresh of
the screen display (see TID Functions in the
3745
Advanced Operations Guide).
The TIC must be in one of the seven following modes (as reported by the NCP):
IDLE: The TIC has not yet been reset by the NCP.
RESET: The TIC has been reset by the NCP but has not yet been initialized.
INITIALIZED: The TIC has been initialized but has not yet been open or disa-
bled. Initialization parameters have been passed to the TIC by the
NCP.
OPEN:
The TIC has been inserted into the token-ring and is in normal oper-
ation. Open parameters have been passed, and receive and
transmit operations have been started.
CLOSED: The TIC has been opened since initialization, but has since been
closed (by the host).
FROZEN: An error was detected by the NCP and the following actions were
taken by the NCP:
• Interrupts from this TIC are disabled.
• DMA from this TIC is disabled.
• The TIC is reset.
DISABLED: The associated TRA has been disconnected by the MOSS. The NCP
will send no Pia to this TIC.
(blank): There is no TIC mode if the NCP is not online.
The TIC mode is derived from the NCP MAC layer status obtained from the
NCP. The following table gives the correspondence:
Medium Access Control (MAC) Status TIC Mode
Idle Idle
TIC resetting hard Idle
TIC resetting soft Idle
Initialization list transfer Reset
Initialized Initialized
Open started Initialized
Receive Initialization Initialized
Transmit Initialization Initialized
Started Open
Transmit
In
progress Open
Close
In
progress Open
Closed Closed
Frozen Frozen
01 scon nected Disabled
1-22
3745 Communication Controller