UPD78F9502MA-CAC-A NEC, UPD78F9502MA-CAC-A Datasheet - Page 151

• Manufacturer Part Number: UPD78F9502MA-CAC-A
• Description: 8BIT MCU, 4K FLASH, 128B RAM, SMD
• Manufacturer: NEC

Specifications of UPD78F9502MA-CAC-A

• Controller Family/series: UPD78F
• No. Of I/o's: 8
• Ram Memory Size: 128Byte
• Cpu Speed: 10MHz
• No. Of Timers: 2
• No. Of Pwm: RoHS Compliant
• Core Size: 8bit
• Program Memory Size: 4KB
• Oscillator Type: External, Internal

(4) Flash programming command register (FLCMD)
This register is used to specify whether the flash memory is erased, written, or verified in the self-programming
mode.
This register is set by using a 1-bit or 8-bit memory manipulation instruction.
Reset signal generation clears this register to 00H.
Note If any command other than those above is executed, command execution may immediately be
Address: FFA3H
FLCMD
Symbol
terminated, and bit 1 or 2 (WEPRERR or VCERR) of the flash status register (PFS) may be set to 1.
Figure 14-11. Format of Flash Programming Command Register (FLCMD)
FLCMD2
7
0
0
0
1
1
Other than above
After reset: 00H
FLCMD1
6
0
0
1
0
0
Preliminary User’s Manual U18681EJ1V0UD
CHAPTER 14 FLASH MEMORY
FLCMD0
Note
5
0
1
1
0
1
R/W
Setting prohibited
Internal verify 1
Internal verify 2
Block erase
Block blank check
Byte write
Command Name
4
0
3
0
This command is used to check if
data has been correctly written to the
flash memory.
whether data has been written to an
entire block. If an error occurs, bit 1
(VCERR) or bit 2 (WEPRERR) of the
flash status register (PFS) is set to 1.
This command is used to check if
data has been correctly written to the
flash memory.
whether data has been written in the
same block. If an error occurs, bit 1
(VCERR) or bit 2 (WEPRERR) of the
flash status register (PFS) is set to 1.
This command is used to erase
specified block. It is used both in the
on-board
programming mode.
This command is used to check if the
specified block has been erased.
This command is used to write 1-byte
data to the specified address in the
flash memory.
address and write data, then execute
this command.
If 1 is written to a bit that has not
been erased (a bit for which the data
is 0), then bit 2 (WEPRERR) of the
flash status register (PFS) becomes
1.
FLCMD2
2
mode
Function
FLCMD1
It is used to check
It is used to check
Specify the write
1
and
FLCMD0
0
self-
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