st20-gp1 STMicroelectronics, st20-gp1 Datasheet - Page 36

• Manufacturer Part Number: st20-gp1
• Description: Gps Processor
• Manufacturer: STMicroelectronics

ST20-GP1
6.3
36/116
†See Section 22
Instruction set tables
Function
Memory
2127FC
code
23FD
21FC
code
22FA
23FE
27FE
21F8
25F0
21F7
25F4
C
D
A
B
E
F
0
1
2
3
4
5
6
7
8
9
Memory
Mnemonic
testpranal
saveh
savel
sthf
sthb
stlf
stlb
sttimer
lddevid
ldmemstartval
code
AX
BX
CX
DX
EX
0X
1X
2X
3X
4X
5X
6X
7X
8X
9X
FX
Table 6.4 Processor initialization operation codes
Mnemonic
j
ldlp
pfix
ldnl
ldc
ldnlp
nfix
ldl
adc
call
cj
ajw
eqc
stl
stnl
opr
Table 6.3 Primary functions
Processor
cycles
1
3
3
1
1
1
1
2
1
1
Processor
cycles
1 or 7
0 to 3
0 to 3
2 to 3
7
1
1
1
1
1
8
2
1
1
2
0
Name
test processor analyzing
save high priority queue registers
save low priority queue registers
store high priority front pointer
store high priority back pointer
store low priority front pointer
store low priority back pointer
store timer
load device identity†
load value of MemStart address
Name
jump
load local pointer
prefix
load non-local
load constant
load non-local pointer
negative prefix
load local
add constant
call
conditional jump
adjust workspace
equals constant
store local
store non-local
operate
Notes
Notes
D, T
O