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COP244C Datasheet(PDF) 13 Page - National Semiconductor (TI) |
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COP244C Datasheet(HTML) 13 Page - National Semiconductor (TI) |
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13 / 24 page  Instruction Set (Continued) TABLE III COP244C245C Instruction Set (Continued) Machine Mnemonic Operand Hex Language Data Flow Skip Description Code Code Conditions (Binary) MEMORY REFERENCE INSTRUCTIONS (Continued) STII y 7b 0111 y y xRAM(B) None Store Memory Immediate Bd a 1 xBd 1 and Increment Bd Xr b 6 00 r 0110 RAM(B) A None Exchange RAM with A (re03) Br Z r xBr Exclusive-OR Br with r XAD rd 23 0010 0011 RAM(rd) A None Exchange A with RAM bb 1 r d Pointed to Directly by rd XDS r b 7 00 r 0111 RAM(B) A Bd Exchange RAM with A (re03) Bdb1 xBd decrements and Decrement Bd Br Z r xBr past 0 Exclusive-OR Br with r XIS r b 4 00 r 0100 RAM(B) A Bd Exchange RAM with A (re03) Bda1 xBd increments and Increment Bd Br Z r xBr past 15 Exclusive-OR Br with r REGISTER REFERENCE INSTRUCTIONS CAB 50 0101 0000 A xBd None Copy A to Bd CBA 4E 0100 1110 Bd xA None Copy Bd to A LBI rd bb 00 r (d–1) rd xB Skip until Load B Immediate with rd (re03 not a LBI (Note 6) de0915) or 33 0011 0011 bb 1 r d (any r any d) LEI y 33 0011 0011 y xEN None Load EN Immediate (Note 7) 6b 0110 y XABR 12 0001 0010 A Br None Exchange A with Br (Note 8) TEST INSTRUCTIONS SKC 20 0010 0000 Ce‘‘1’’ Skip if C is True SKE 21 0010 0001 AeRAM(B) Skip if A Equals RAM SKGZ 33 0011 0011 G30e0 Skip if G is Zero 21 0010 0001 (all 4 bits) SKGBZ 33 0011 0011 1st byte Skip if G Bit is Zero 001 0000 0001 G0e0 111 0001 0001 G1e0 203 0000 0011 2nd byte G2e0 313 0001 0011 * G3e0 SKMBZ 0 01 0000 0001 RAM(B)0e0 Skip if RAM Bit is Zero 111 0001 0001 RAM(B)1e0 203 0000 0011 RAM(B)2e0 313 0001 0011 RAM(B)3e0 SKT 41 0100 0001 A time-base Skip on Timer counter carry (Note 3) has occurred since last test 13 |
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