Store Fie Ld Code Def In It Ions - HP 3000 III Series Manual

The Store field code BSPO stores
the U-Bus into ACOR or DCOR, de-
pending on the MCU field option se-
lected and into spa. Disables the
Special field and enables the MCU
op t ions, on
e
0
f wh i ch mus t be use d .
System Microcode
Table 5-6. S tore Field Code Def in i tions
1--- ------------
--------------------,--------------'T-----------.--.-.----.--------.-.--.-.----~._-.--.-~~--_.
I
I 1
Fie 1d
I 1
I
Label and Name
1
Code
I
Des cr ipt ion
I
I 1 I I
- --------- -- ----._--- ---------.-- 1-------.-,.-- - ---.-.-.-. . ----------.--.----------------.-.-.---.---.------. .
- -~.-
I
Nap I 11111 No Operation.
(No Opera tion) I
I
BSPO I 00101
(Bus to Scra tch
I
Pad 0)
I
BSP1
(Bus to Scr a tch
Pad
1)
BUS
00100
00111
Same as BSPO except SP 1 is used.
Same as BSPO except none of the
scratch pad registers are used.
CTRH
(Counter High)
01111 I The Store field code CTRH stores U-
Bus bits 4 thru 9 in CNTR Register
bits 0 thru 5.
CTRL
(Counte r Low)
DB
(Data Base)
01110
10011
The Store field code CTRL stores U-
Bus bits 10 thru 15 in CNTR Regist-
e r bits 0 thr uS.
The Store field code DB stores the
16-bit U-Bus word in the DB Regist-
er.
DL 11100
(Da ta Limi t)
lOA 00001
(I/O Addres s)
laD 00010
(I/O Data)
The Store field code DL stores the
16-bi t U-Bus word in the DL Re gist-
ere
The Store field code lOA sends the
command on the U-Bus (bits 5 thru
7) to the device whose address is
on the U-Bus in bits 8 thru 15.
U-Bus bi t 0
=
1 send s a service- out
signal to the device.
The Store field code laD stores the
16-bi t word cur rent1y on the U-B us
in the Direct Output Data (DOD)
Register.
5-25