HD6433044 Hitachi Semiconductor, HD6433044 Datasheet - Page 585

• Manufacturer Part Number: HD6433044
• Description: (HD64 Series) Hitachi Single-Chip Microcomputer
• Manufacturer: Hitachi Semiconductor

Bits 5 to 4—Reserved: Read-only bits, always read as 0.
Bit 3—Erase-Verify Mode (EV)
Bit 3
EV
0
1
Bit 2—Erase-Verify Mode (PV)
Bit 2
PV
0
1
Bit 1—Erase Mode (E)
Bit 1
E
0
1
Bit 0—Program Mode (P)
Bit 0
P
0
1
Notes: 1. Do not set two or more of these bits simultaneously. Do not turn off power supply
2. For each bit setting procedure, follow the algorithm described in section 18.7,
(V
Programming and Erasing Flash Memory. For the notes on programming and erasing,
refer to section 18.10, Flash Memory Programming and Erasing Precautions.
Particularly, be sure to set the watchdog timer beforehand to prevent program runaway,
when the E or P bit is set.
CC
Description
Exit from erase-verify mode
Transition to erase-verify mode
Description
Exit from program-verify mode
Transition to program-verify mode
Description
Exit from erase mode
Transition to erase mode
Description
Exit from program mode
Transition to program mode
–V
PP
) while a bit is set.
*1, *2
*1, *2
: Selects transition to or exit from erase mode.
: Selects transition to or exit from program mode.
*1
*1
: Selects transition to or exit from program-verify mode.
: Selects transition to or exit from erase-verify mode.
576
(Initial value)
(Initial value)
(Initial value)
(Initial value)