ds96-039wdsp ETC-unknow, ds96-039wdsp Datasheet - Page 17

• Manufacturer Part Number: ds96-039wdsp
• Description: Clarification Serial Control Register Description Dsp1620/27/28/29 Devices
• Manufacturer: ETC-unknow

February 1997
4 Hardware Architecture
Table 3. DSP1600 Core Block Diagram Legend
* F3 ALU instructions with immediates require specifying the high half of the accumulators as a0h and a1h.
Lucent Technologies Inc.
16 x 16 MPY
ALU/SHIFT
Symbol
a0—a1
c0—c2
r0—r3
XAAU
YAAU
ybase
mwait
cloop
CMP
MUX
DAU
SYS
XAB
XDB
YAB
YDB
psw
auc
IDB
PC
inc
ins
alf
pi
pr
pt
rb
re
p
k
x
y
i
j
16-bit x 16-bit Multiplier.
Accumulators 0 and 1 (16-bit halves specified as a0, a0l, a1, and a1l)*.
AWAIT, LOWPR, Flags.
Arithmetic Logic Unit/Shifter.
Arithmetic Unit Control.
Counters 0—2.
Cache Loop Count.
Comparator.
Digital Arithmetic Unit.
Increment Register for the X Address Space.
Internal Data Bus.
Interrupt Control.
Interrupt Status.
Increment Register for the Y Address Space.
Increment Register for the Y Address Space.
Multiplexer.
External Memory Wait-states Register.
Product Register (16-bit halves specified as p, pl).
Program Counter.
Program Interrupt Return Register.
Program Return Register.
Processor Status Word.
X Address Space Pointer.
Y Address Space Pointers.
Modulo Addressing Register (begin address).
Modulo Addressing Register (end address).
System Cache and Control Section.
Multiplier Input Register.
X Space Address Arithmetic Unit.
X Space Address Bus.
X Space Data Bus.
Y Space Address Arithmetic Unit.
Y Space Address Bus.
Y Space Data Bus.
Direct Addressing Base Register.
DAU Register (16-bit halves specified as y, yl).
(continued)
Name
DSP1628 Digital Signal Processor
15