Maxim Integrated Ultra-High-Speed Flash Microcontroller - Manual (Page 65)

5-18
Ultra-High-Speed Flash
Microcontroller User’s Guide
INSTRUCTION HEX CODE
UHSM CLOCK
CYCLES
UHSM TIME @
25MHz
8051 CLOCK
CYCLES
8051 TIME @
25MHz
UHSM vs. 8051
SPEED
ADVANTAGE
MOV Rn, direct A8..AF 2 80 ns 24 960 ns 12
MOV Rn, #data 78..7F 2 80 ns 12 480 ns 6
MOV direct, A F5 2 80 ns 12 480 ns 6
MOV direct, Rn 88..8F 2 80 ns 24 960 ns 12
MOV direct, direct 85 3 120 ns 24 960 ns 8
MOV direct, @Ri 86..87 2 80 ns 24 960 ns 12
MOV direct, #data 75 3 120 ns 24 960 ns 8
MOV @Ri, A F6..F7 1 40 ns 12 480 ns 12
MOV @Ri, direct A6..A7 2 80 ns 24 960 ns 12
MOV @Ri, #data 76..77 2 80 ns 12 480 ns 6
MOV DPTR, #data 16 90 3 120 ns 24 960 ns 8
MOVC A, @A+DPTR 93 3 120 ns 24 960 ns 8
MOVC A, @A+PC 83 3 120 ns 24 960 ns 8
MOVX A, @Ri E2..E3 2 80 ns 24 960 ns 12
MOVX A, @DPTR E0 2 80 ns 24 960 ns 12
MOVX @Ri, A F2..F3 2 80 ns 24 960 ns 12
MOVX @DPTR, A F0 2 80 ns 24 960 ns 12
PUSH direct C0 2 80 ns 24 960 ns 12
POP direct D0 2 80 ns 24 960 ns 12
XCH A, Rn C8..CF 2 80 ns 12 480 ns 6
XCH A, direct C5 3 120 ns 12 480 ns 4
XCH A, @Ri C6..C7 3 120 ns 12 480 ns 4
XCHD A, @Ri D6..D7 3 120 ns 12 480 ns 4
CLR C C3 1 40 ns 12 480 ns 12
CLR bit C2 2 80 ns 12 480 ns 6
SETB C D3 1 40 ns 12 480 ns 12
SETB bit D2 2 80 ns 12 480 ns 6
CPL C B3 1 40 ns 12 480 ns 12
CPL bit B2 2 80 ns 12 480 ns 6
ANL C, bit 82 2 80 ns 24 960 ns 12
ANL C, B0 2 80 ns 24 960 ns 12
ORL C, bit 72 2 80 ns 24 960 ns 12
ORL C, A0 2 80 ns 24 960 ns 12
MOV C, bit A2 2 80 ns 12 480 ns 6
MOV bit, C 92 2 80 ns 24 960 ns 12
Table 5-1. Instruction Timing Comparison (continued)
Maxim Integrated