Hyundai Micro Electronics
GMS81C2020/GMS81C2120
Address
Program Memory
TCALL 15
TCALL 14
TCALL 13
TCALL 12
TCALL 11
TCALL 10
TCALL 9
0FFC0
C1
H
C2
C3
C4
C5
C6
C7
C8
C9
Address
0FF00
PCALL Area Memory
H
PCALL Area
(256 Bytes)
CA
CB
CC
CD
CE
CF
TCALL 8
0FFFF
H
D0
D1
D2
D3
D4
D5
D6
D7
D8
D9
DA
DB
DC
DD
DE
DF
TCALL 7
TCALL 6
TCALL 5
TCALL 4
TCALL 3
TCALL 2
TCALL 1
TCALL 0 / BRK *
NOTE:
* means that the BRK software interrupt is using
same address with TCALL0.
Figure 11-6 PCALL and TCALL Memory Area
PCALL→ rel
TCALL→ n
4F35
PCALL 35H
4A
TCALL 4
4A
01001010
4F
35
Reverse
þ
~
~
~
~
PC:
11111111
11010110
~
~
~
~
NEXT
0F125H
F
H
F
H
D
6
H H
0FF00H
0FF35H
Ã
0FF00H
À
NEXT
0FFD6H
0FFD7H
25
F1
0FFFFH
0FFFFH
Nov. 1999 Ver 0.0
preliminary
29
HYNIX [ HYNIX SEMICONDUCTOR ]
