Symbols; Table 2-1: Control Group Symbol Table Definitions - Tektronix TMS 165 Instruction Manual

Setting Up the Support

Symbols

Table 2–1: Control group symbol table definitions
Symbol
LOCK~
HALT X
FETCH_8 1
FETCH_8 1
FETCH_16 1
FETCH_16 1
FETCH_32 1
FETCH_32 1
READ_8 1
READ_8 1
READ_16 1
READ_16 1
READ_32 1
READ_32 1
2–2
The TMS 165 support has two modes of clocking:
H Ext. Bus Master Cycles Excluded, where DMA cycles are not acquired. This
is the default acquisition clocking selection.
H Ext. Bus Master Cycles Included, where DMA cycles are acquired.
The TMS 165 support supplies one symbol table file. The i960RP_Ctrl file
replaces specific Control channel group values with symbolic values when
Symbolic is the radix for the channel group.
Table 2–1 shows the name, bit pattern, and meaning for the symbols in the file
i960RP_Ctrl, the Control channel group symbol table.
Control group value
HOLDA W/R~
WIDTH1 D/C~
WIDTH0 RDYRCV~
BLAST~ LRDYRCV~
X 1 1 X X X X X
0 0 0 X 0 0 0 X
0 0 0 X 0 0 X 0
0 0 1 X 0 0 0 X
0 0 1 X 0 0 X 0
0 1 0 X 0 0 X 0
0 1 0 X 0 0 X 0
0 0 0 X 0 1 0 X
0 0 0 X 0 1 X 0
0 0 1 X 0 1 0 X
0 0 1 X 0 1 X 0
0 1 0 X 0 1 0 X
0 1 0 X 0 1 X 0
Meaning
Processor halted
Code read – 8 bit
Code read – 8 bit
Code read – 16 bit
Code read – 16 bit
Code read – 32 bit
Code read – 32 bit
Non burst 8 bit memory read cycle
Non burst 8 bit memory read cycle
Non burst 16 bit memory read cycle
Non burst 16 bit memory read cycle
Non burst 32 bit memory read cycle
Non burst 32 bit memory read cycle
TMS 165 i960RP Microprocessor Support Instruction Manual