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Number
Name
Meaning
SD620
Drive 3/4 typs
Drive 3/4 typs
Drive 3
SD622
(Standard RAM)
Drive 3 capacity
capacity
Drive 4
SD623
(Standard
Drive 4 capacity
ROM) capacity
Drive 3/4 use
Drive 3/4 use
conditions
conditions
SD624
Drive 3/4 use
Drive 3/4 use
conditions
conditions
Drive 3/4 use
Drive 3/4 use
SD624
conditions
conditions
File register
SD640
Drive number:
drive
*3: The Universal model QCPU except the Q00UJCPU.
*10: On the Basic model QCPU, data is set at STOP to RUN or RSET instruction execution after parameter execution.
12 - 53
Table12.23 Special register
Explanation
• Indicates the drive 3/4 type.
b15
to
b8
b7
to
b4
b3
to
0
Drive 3
(Standrd
RAM)
Drive 4
(Standrd
ROM)
(The bits for the drive 3 (standard RAM) type is fixed to "0" in the
Q00UJCPU.)
• Indicates the drive 3/4 type.
b15
to
b8 b7
to
b4 b3
to
0
Drive 3
(Standard RAM)
Drive 4
(Standrd ROM)
• Drive 3 capacity is stored in 1 k byte units.
(Empty capacity after format is stored.)
• Drive 3 capacity is stored in 1k byte units.
• Drive 4 capacity is stored in 1 k byte units.
(Empty capacity after format is stored.)
• Drive 4 capacity is stored in 1k byte units.
• The conditions for usage for drive 3/4 are stored as bit patterns.
(In use when ON)
• The significance of these bit patterns is indicated below:
b0 : Boot operation (QBT)
b8 : Not used
b1 : Parameters (QPA)
b9 : CPU fault history (QFD)
b2 : Device comments (QCD)
b10 : SFC trace (QTS)
b3 : Device initial value (QDI)
b11 : Local device (QDL)
b4 : File register (QDR)
b12 : Not used
b5 : Sampling trace (QTD)
b13 : Not used
b6 : Not used
b14 : Not used
b7 : Not used
b15 : Not used
• The conditions for usage for drive 3/4 are stored as bit patterns.
(In use when ON)
• The significance of these bit patterns is indicated below:
b0 : Not used
b8 : Not used
b1 : Parameters (QPA)
b9 : Not used
b2 : Device comments (QCD)
b10 : Not used
*1
b3 : Device initial value (QDI)
b11 : Local device (QDL)
b4 : File register (QDR)
b12 : Not used
b5 : Sampling trace (QTD)
b13 : Not used
b6 : Not used
b14 : Not used
b7 : Not used
b15 : Not used
*1: Turned ON at boot start and OFF at boot completion.
• The conditions for usage for drive 3/4 are stored as bit patterns.
b15
to
b5
b4
to
0
0
0
0
0
• Stores drive number being used by file register
(When Set)
b0
Fixed to 1
Fixed to 3
b0
0: Absent
1: Present
Fixed to
"3 (FLASH ROM)"
b0
0
Boot operation (QBT)
0: Not used
1: In use
File register (QDR)
0: Not used
1: In use
Corres-
ponding
Set by
Corresponding
ACPU
D9
Qn(H)
QnPH
S (Initial)
New
QnPRH
S (Initial)
New
Q00J/Q00/Q01
Qn(H)
QnPH
S (Initial)
New
QnPRH
S (Initial)
New
Q00J/Q00/Q01
Qn(H)
QnPH
S (Initial)
New
QnPRH
S (Initial)
New
Q00J/Q00/Q01
Qn(H)
S (Status
New
QnPH
change)
QnPRH
S (Status
New
change)
S (Status
New
Q00J/Q00/Q01
change)
Q00J/Q00/Q01
Qn(H)
S (Status
QnPH
New
change) *10
QnPRH
QnU
CPU
QnU
QnU
QnU
QnU
*3
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