Tektronix Socket 7 TMS109A, Instruction Manual

Page: 53 / 113

Setting Up the Support
TMS 109A Socket 7 Microprocessor Support
2–7
Table 2–1: Control group symbol table definitions (cont.)
Control group value
Symbol Meaning
PRDY SCYC BOFF3#
D/P# BUSCHK# LAST_D M/IO#
INIT SMIACT# AHOLD D/C#
IRESET_L LOCK# HLDA W/R#
D_INT_ACK 1 X 0 X X X X X X X 0 1 0 0 0
Dual processor int. acknowledge
INT_ACK* X X 0 X X X X X X X 0 1 0 0 0
Interrupt acknowledge cycle
P_SPECIAL 0 X 0 X X X X X X X 0 1 0 0 1
Primary processor special cycle
D_SPECIAL 1 X 0 X X X X X X X 0 1 0 0 1
Dual processor special cycle
SPECIAL* X X 0 X X X X X X X 0 1 0 0 1
Special cycle
P_RESERVE 0 X 0 X X X X X X X 0 1 1 0 1
Primary processor reserved
D_RESERVE 1 X 0 X X X X X X X 0 1 1 0 1
Dual processor reserved
RESERVE* X X 0 X X X X X X X 0 1 1 0 1
Reserved
ALT_B_MTR X X 0 X X X X X X X 1 X X X X
Alternate bus master cycle
BOFF X X 0 X X X X X X X X 0 X X X
Backoff cycle
P_BUSCHCK 0 X 0 X 0 X X X X X 0 1 X X X
Primary processor buscheck
D_BUSCHCK 1 X 0 X 0 X X X X X 0 1 X X X
Dual processor buscheck
BUSCHCK* 0 X 0 X 0 X X X X X 0 1 X X X
Buscheck
P_LOCKED 0 X 0 X 1 X 0 X X X X X X X X
Any primary processor locked cycle
D_LOCKED 1 X 0 X 1 X 0 X X X X X X X X
Any dual processor locked cycle
LOCKED* X X 0 X 1 X 0 X X X X X X X X
Any locked cycle
P_SPLTCYC* 0 X 0 X 1 X 0 1 X X X X X X X
Primary processor split cycle
D_SPLTCYC* 1 X 0 X 1 X 0 1 X X X X X X X
Dual processor split cycle
SPLTCYC* X X 0 X 1 X 0 1 X X X X X X X
Split cycle
P_SMM* 0 X 0 X X 0 X X X X X X X X X
The primary processor is in smm
D_SMM* 1 X 0 X X 0 X X X X X X X X X
The dual processor is in smm
SMM* X X 0 X X 0 X X X X X X X X X
Either processor is in smm
PRIMARY* 0 X X X X X X X X X X X X X X
Any primary processor cycle
DUAL* 1 X X X X X X X X X X X X X X
Any dual processor cycle
*
Symbols used only for triggering; they are not displayed.
Information on basic operations describes how to use symbolic values for
triggering and for displaying other channel groups symbolically, such as the
Address channel group.