HD64F3437TFI16V Renesas Electronics America, HD64F3437TFI16V Datasheet - Page 473

• Manufacturer Part Number: HD64F3437TFI16V
• Description: MCU FLASH 60K 100-TQFP
• Manufacturer: Renesas Electronics America

Specifications of HD64F3437TFI16V

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

20.2
20.2.1
FLMCR is an 8-bit register that controls the flash memory operating modes. Transitions to
program mode, erase mode, program-verify mode, and erase-verify mode are made by setting bits
in this register. FLMCR is initialized to H'00 by a reset, in the standby modes, and when 12 V is
not applied to FV
initializes FLMCR to H'80.
Note: * The initial value is H'00 in modes 2 and 3 (on-chip flash memory enabled). In mode 1 (on-
Bit 7—Programming Power (V
Refer to section 20.7, Flash Memory Programming and Erasing Precautions (5), for details on use.
Bit 7: V
0
1
Bits 6 to 4—Reserved: Read-only bits, always read as 0.
Bit 3—Erase-Verify Mode (EV):
Bit 3: EV
0
1
Bit 2—Program-Verify Mode (PV):
Bit 2: PV
0
1
Bit
Initial value*
Read/Write
chip flash memory disabled), this register cannot be modified and always reads H'FF. For
information on accessing this register, refer to in section 20.7, Flash Memory Programming
and Erasing Precautions (11).
PP
Flash Memory Register Descriptions
Flash Memory Control Register (FLMCR)
PP
. When 12 V is applied to the FV
V
Description
Cleared when 12 V is not applied to FV
Set when 12 V is applied to FV
Description
Exit from erase-verify mode
Transition to erase-verify mode
Description
Exit from program-verify mode
Transition to program-verify mode
7
0
R
PP
—
—
6
0
PP
*1
): This status flag indicates that 12 V is applied to the FV
Selects transition to or exit from erase-verify mode.
*1
Selects transition to or exit from program-verify mode.
—
—
5
0
PP
—
—
4
0
PP
pin, a reset or entry to a standby mode
PP
R/W*
EV
3
0
R/W*
PV
2
0
R/W*
1
E
0
(Initial value)
(Initial value)
(Initial value)
R/W*
PP
0
P
0
pin.
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