Hitachi H8/3062 Hardware Manual page 532

Single-chip microcomputer h8/3062 series; h8/3062b series; h8/3062f-ztat series; h8/3064f-ztat series
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Bit 7—Flash Write Enable (FWE): Sets hardware protection against flash memory
programming/erasing. See section 17.9, Flash Memory Programming and Erasing Precautions, for
more information on the use of this bit.
Bit 7
FWE
Description
0
When a low level is input to the FWE pin (hardware-protected state)
1
When a high level is input to the FWE pin
Bit 6—Software Write Enable (SWE) *
erasing. This bit should be set before setting FLMCR bits 5 to 0 and EBR bits 7 to 0 (Do not set
the ESU, PSU, EV, PV, E, or P bit at the same time).
Bit 6
SWE
Description
0
Programming/erasing disabled
1
Programming/erasing enabled
[Setting condition]
When FWE = 1
Bit 5—Erase Setup (ESU) *
EV, PV, E, or P bit at the same time).
Bit 5
ESU
Description
0
Erase setup cleared
1
Erase setup
[Setting condition]
When FWE = 1 and SWE = 1
Bit 4—Program Setup (PSU) *
ESU, EV, PV, E, or P bit at the same time).
Bit 4
PSU
Description
0
Program setup cleared
1
Program setup
[Setting condition]
When FWE = 1 and SWE = 1
484
1
*
2
: Enables or disables flash memory programming and
1
: Prepares for a transition to erase mode (Do not set the SWE, PSU,
1
: Prepares for a transition to program mode (Do not set the SWE,
(Initial value)
(Initial value)
(Initial value)

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