Analog Devices adsp-2100 - Page 49

Computational Units
2 – 25
2
Control Code Shifter Array Output
HI reference LO Reference
+16 to +127 +32 to +127 00000000 00000000 00000000 00000000
+15 +31 R0000000 00000000 00000000 00000000
+14 +30 PR000000 00000000 00000000 00000000
+13 +29 NPR00000 00000000 00000000 00000000
+12 +28 MNPR0000 00000000 00000000 00000000
+11 +27 LMNPR000 00000000 00000000 00000000
+10 +26 KLMNPR00 00000000 00000000 00000000
+9 +25 JKLMNPR0 00000000 00000000 00000000
+8 +24 IJKLMNPR 00000000 00000000 00000000
+7 +23 HIJKLMNP R0000000 00000000 00000000
+6 +22 GHIJKLMN PR000000 00000000 00000000
+5 +21 FGHIJKLM NPR00000 00000000 00000000
+4 +20 EFGHIJKL MNPR0000 00000000 00000000
+3 +19 DEFGHIJK LMNPR000 00000000 00000000
+2 +18 CDEFGHIJ KLMNPR00 00000000 00000000
+1 +17 BCDEFGHI JKLMNPR0 00000000 00000000
0 +16 ABCDEFGH IJKLMNPR 00000000 00000000
-1 +15 XABCDEFG HIJKLMNP R0000000 00000000
-2 +14 XXABCDEF GHIJKLMN PR000000 00000000
-3 +13 XXXABCDE FGHIJKLM NPR00000 00000000
-4 +12 XXXXABCD EFGHIJKL MNPR0000 00000000
-5 +11 XXXXXABC DEFGHIJK LMNPR000 00000000
-6 +10 XXXXXXAB CDEFGHIJ KLMNPR00 00000000
-7 +9 XXXXXXXA BCDEFGHI JKLMNPR0 00000000
-8 +8 XXXXXXXX ABCDEFGH IJKLMNPR 00000000
-9 +7 XXXXXXXX XABCDEFG HIJKLMNP R0000000
-10 +6 XXXXXXXX XXABCDEF GHIJKLMN PR000000
-11 +5 XXXXXXXX XXXABCDE FGHIJKLM NPR00000
-12 +4 XXXXXXXX XXXXABCD EFGHIJKL MNPR0000
-13 +3 XXXXXXXX XXXXXABC DEFGHIJK LMNPR000
-14 +2 XXXXXXXX XXXXXXAB CDEFGHIJ KLMNPR00
-15 +1 XXXXXXXX XXXXXXXA BCDEFGHI JKLMNPR0
-16 0 XXXXXXXX XXXXXXXX ABCDEFGH IJKLMNPR
-17 -1 XXXXXXXX XXXXXXXX XABCDEFG HIJKLMNP
-18 -2 XXXXXXXX XXXXXXXX XXABCDEF GHIJKLMN
-19 -3 XXXXXXXX XXXXXXXX XXXABCDE FGHIJKLM
-20 -4 XXXXXXXX XXXXXXXX XXXXABCD EFGHIJKL
-21 -5 XXXXXXXX XXXXXXXX XXXXXABC DEFGHIJK
-22 -6 XXXXXXXX XXXXXXXX XXXXXXAB CDEFGHIJ
-23 -7 XXXXXXXX XXXXXXXX XXXXXXXA BCDEFGHI
-24 -8 XXXXXXXX XXXXXXXX XXXXXXXX ABCDEFGH
-25 -9 XXXXXXXX XXXXXXXX XXXXXXXX XABCDEFG
-26 -10 XXXXXXXX XXXXXXXX XXXXXXXX XXABCDEF
-27 -11 XXXXXXXX XXXXXXXX XXXXXXXX XXXABCDE
-28 -12 XXXXXXXX XXXXXXXX XXXXXXXX XXXXABCD
-29 -13 XXXXXXXX XXXXXXXX XXXXXXXX XXXXXABC
-30 -14 XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXAB
-31 -15 XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXA
-32 to -128 -16 to -128 XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX
Table 2.4 Shifter Array Characteristic
ABCDEFGHIJKLMNPR
represents the 16-bit
input pattern
X stands for the
extension bit