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Renesas SH7781 User Manual

Page 193

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7. Memory Management Unit (MMU)

Rev.1.00 Jan. 10, 2008 Page 163 of 1658

REJ09B0261-0100

Bit Bit

Name

Initial
Value R/W

Description

3

R1

0

R/W

Re-Fetch Inhibit 1 after Register Change

When a register allocated in addresses H'FF200000 to
H'FF2FFFFF is changed, this bit controls whether re-
fetch is performed for the next instruction.

0: Re-fetch is performed

1: Re-fetch is not performed

2

LT

0

R/W

Re-Fetch Inhibit after LDTLB Execution

This bit controls whether re-fetch is performed for the
next instruction after the LDTLB instruction has been
executed.

0: Re-fetch is performed

1: Re-fetch is not performed

1

MT

0

R/W

Re-Fetch Inhibit after Writing Memory-Mapped TLB

This bit controls whether re-fetch is performed for the
next instruction after writing memory-mapped
ITLB/UTLB while the AT bit in MMUCR is set to 1.

0: Re-fetch is performed

1: Re-fetch is not performed

0

MC

0

R/W

Re-Fetch Inhibit after Writing Memory-Mapped IC

This bit controls whether re-fetch is performed for the
next instruction after writing memory-mapped IC while
the ICE bit in CCR is set to 1.

0: Re-fetch is performed

1: Re-fetch is not performed