APPENDICES
Appendix 2 Special Register List
App
- 60
9
P
a
ra
met
e
rs
10
Device
Exp
la
n
at
ion
11
CP
U
M
odu
le
P
ro
cessi
ng
Ti
m
e
12
P
roc
e
d
ure
f
or W
rit
in
g
P
rog
ra
m t
o CP
U Mo
du
le
A
p
pe
nd
ic
e
s
In
de
x
Number
Name
Meaning
Explanation
Set by
(When Set)
Corres-
ponding
ACPU
D9
Corresponding
CPU
SD620
Drive 3/4 typs
Drive 3/4 typs
• Indicates the drive 3/4 type.
S (Initial)
New
Qn(H)
QnPH
QnPRH
QnU
• Indicates the drive 3/4 type.
S (Initial)
New
Q00J/Q00/Q01
Memory card B
typs
Memory card B
typs
• Indicates memory card B type installed
S (Initial/Card
installation and
removal)
New
Q2A(S1)
Q3A
Q4A
Q4AR
SD622
Drive 3
(Standard RAM)
capacity
Drive 3 capacity
• Drive 3 capacity is stored in 1 k byte units.
(Empty capacity after format is stored.)
S (Initial)
New
Qn(H)
QnPH
QnPRH
QnU
S (Initial/Card
installation and
removal)
New
Q2A(S1)
Q3A
Q4A
Q4AR
SD623
Drive 4
(Standard
ROM) capacity
Drive 4 capacity
• Drive 4 capacity is stored in 1 k byte units.
(Empty capacity after format is stored.)
S (Initial)
New
Qn(H)
QnPH
QnPRH
QnU
S (Initial/Card
installation and
removal)
New
Q2A(S1)
Q3A
Q4A
Q4AR
0
b7
b4
b0
b15
b8
to
to
Drive 3
(Standrd
RAM)
Fixed to 1
Drive 4
(Standrd
ROM)
Fixed to 3
b3
to
b4 b3
b0
0
b8 b7
b15
to
to
to
Drive 3
(Standard RAM)
Drive 4
(Standrd ROM)
0: Absent
1: Present
Fixed to
"3 (FLASH ROM)"
0
b7
b4
b0
b15
b8
to
to
Drive 3
(RAM)
Drive 4
(ROM)
b3
to
0: Does not exist
1: SRAM
0: Does not exist
2: E
2
PROM
3: Flash ROM