Cray CRAY-1 - Page 205

MODULE TYPES
Alpha
No.
Alpha
No.
Code
AQQlication
Used
Code
AQ~11cation Used
A SERIES MODULES G SERIES MODULES
AA Address adder
5
GA
Scalar single shift
4
AB
Storage block address
2
GB
Scalar double shift (front half)
4
AC
Vector storage control
GC
Scalar double shift (back
half)
4
AD
Storage address distribution
GD
Data A k to
Si extended
AE Band T storage control
GE
Scalar add (front half)
4
AF Address
multiply
levels 1 and
GF
Scalar add (back balf)
AG Address multiply level 2
GG
Constant to Si
AH Address multiply upper level
GH
Pop and zero count to Ai
AI Address multiply lower
1 evel
GI Real
time clock
2
AJ Address multiply level
4 1
I
GJ* RTC/PCI
(lower bits)
AR Address registers 12
GK*
RTCjPCI (upper bits)
I
D SERIES MODULES
GR Scalar
registers
32
DE
Address
merge fanout 10
H SERIES MODULES
DF Channel
reference control
HA
Program branch control
DG Channel
interrupt control
HB
Next instruction parcel
4
DH
Channel
address control
HC
Lower program address
1
DI Synchronizing circuits
HD
Upper program address
2
I
DJ Input channel control
16-bit
-'-+
HE
Program parameter data
4
DK
Output channel control
16-bit
~+
HF
Fetch sequence control
1
DL
Input data assembly 16-bit 12
I
HS Instruction buffers
8
DM
Output data disassembly
16-bit 12
HX
Exchange
sequence control
1
ON
Input channel control
tt
J SERIES MODULES
DO Output channel control
tt
JA CIP
fanout to AR modules
OU Input channel
control
JB
CIP fanout to GR modules
10
OV
Input c~annel control
JC
Select vector data paths
DZ
Unused I/O channel termination
~+
JD
Vector function issue control
F
SERIES MODULES
JE
Floating point issue control
FA
Floating add exponent
input
JF
Vector register issue control
operands
JG
Scalar register issue control
FB Floating add exponent
input
JH
Address register issue control
operands
FC Floating add
coefficient input
JI
Storage access issue control
operands
4
JJ
Hold storage issue control
FO
Floating add
coefficient
alignment 4
JK
Address access control
FE Floating add
coefficient add
JL
Scalar access control
(front half)
FF Floating add coefficient add
(back half)
FG Floating add
coefficient result
FH Floating add
coefficient result
FI Floating
add exponent data
FJ Floating add
exponent result
* When the Programmable Clock Option is installed, a GJ module and a
GK module replace the two GI modules.
8
t DU, DV modules are used to communicate with various CRr interfaces. The
number of modules varies with the system configuration.
tt The number of modules depends on the configuration.
2240004
8-1
E