Delta Tau GEO BRICK LV Reference Manual
Turbo PMAC/PMAC2 Software Reference
Turbo PMAC Memory and I/O Map
546
Bits:
0
DAT0 Inversion Control
...
7
DAT7 Inversion Control
8
SEL0 Inversion Control
...
15
SEL7 Inversion Control
(All bits: 0=Non-inverting; 1=Inverting)
(All bits must be 0 to use standard port accessories)
16-23 Not used
Y:$078407 JDISP, J??? Port Data Type Control Register
Bits:
0
DISP0 Data Type Control
...
7
DISP7 Data Type Control
8
CTRL0 Data Type Control
...
11
CTRL3 Data Type Control
(These bits are always 1; there is no alternate mode for these pins)
12-23 Not used
X:$078407 JDISP, J??? Port Data Inversion Control Register
Bits:
0
DISP0 Inversion Control
...
7
DISP7 Inversion Control
8
CTRL0 Inversion Control
...
11
CTRL3 Inversion Control
(All bits: 0=Non-inverting; 1=Inverting)
(All bits must be 0 to use standard port accessories)
12-23 Not used
Y:$078408-$07840B
Not used
X:$078408-$07840B
Not used
Y:$07840C Pure binary conversion from gray code input on I/O00 to I/O23
X:$07840C Not used
Y:$07840D Gray-to-binary conversion bit-length control
X:$07840C Not used
Y:$07840D Gray-to-binary conversion bit-length control
Bits:
0-3
Bit length of less significant word portion (I/O00 - I/Onn)
4
=1 specifies 16-bit lower / 8-bit upper conversion
5-23
Not used
X:$07840D Not used
MACRO Ring Control Registers
MACRO IC#
0
1
2
3
Address
$07840E
$07940E
$07A40E $07B40E
Y:$07x40E MACRO Node Enable Control (I6841, I6891, I6941, I6991)
Bits:
0
Node 0 enable control
...
15
Node 15 enable control
(0=node disable; 1=node enable)
16-19 Sync packet slave node number control
20-23 Master number control