AT87251G2D-3CSUM【PDF 27/77 页】IC 8051 MCU 32K OTP 24MHZ 40DIP

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Sheet目录3833

23页 24页 25页 26页 [27页]28页 29页 30页 31页

AT/TSC8x251G2D

4135F–8051–11/06

Notes:

1. Instructions that move bits are in Table 27.

2. Move instructions unique to the C251 Architecture.

3. If this instruction addresses an I/O Port (Px, x = 0-3), add 1 to the number of states. Add 2 if it addresses a Peripheral SFR.

4. If this instruction addresses external memory location, add N+2 to the number of states (N: number of wait states).

5. If this instruction addresses external memory location, add 2(N+1) to the number of states (N: number of wait states).

6. If this instruction addresses external memory location, add 4(N+2) to the number of states (N: number of wait states).

MOV

WRj, at WRj

+dis24

Indirect with 16-bit displacement (16M) to word register

8(5)

47(5)

MOV

at WRj +dis16,

Byte register to indirect with 16-bit displacement (64K)

6(4)

45(4)

MOV

at WRj +dis16,

WRj

Word register to indirect with 16-bit displacement (64K)

7(5)

46(5)

MOV

at DRk +dis24,

Byte register to indirect with 16-bit displacement (16M)

7(4)

46(4)

MOV

at DRk +dis24,

WRj

Word register to indirect with 16-bit displacement (16M)

8(5)

47(5)

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