SH7041A datasheet(110/923 Pages) RENESAS

Teilenummer	SH7041A

Bauteilbeschribung	Renesas 32-Bit Single-Chip RISC Microprocessor SuperH RISC engine Family/SH7040 Series(CPU Core SH-2)

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Table 2.17

System Control Instructions (cont)

Instruction

Instruction Code

Operation

Exec.

Cycles

T Bit

STS.L

MACH,@–Rn

0100nnnn00000010

Rn–4

→ Rn, MACH → (Rn)

—

STS.L

MACL,@–Rn

0100nnnn00010010

Rn–4

→ Rn, MACL → (Rn)

—

STS.L

PR,@–Rn

0100nnnn00100010

Rn–4

→ Rn, PR → (Rn)

—

TRAPA

#imm

11000011iiiiiiii

PC/SR

→ stack area,

(imm

× 4 + VBR) → PC

8—

Note: * The number of execution cycles before the chip enters sleep mode: The execution cycles

shown in the table are minimums. The actual number of cycles may be increased when

(1) contention occurs between instruction fetches and data access, or (2) when the

destination register of the load instruction (memory

→ register) and the register used by

the next instruction are the same.

2.5

Processing States

2.5.1

State Transitions

The CPU has five processing states: reset, exception processing, bus release, program execution

and power-down. Figure 2.6 shows the transitions between the states.

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