UPD78F9222MC(T)-5A4-A NEC, UPD78F9222MC(T)-5A4-A Datasheet - Page 284

• Manufacturer Part Number: UPD78F9222MC(T)-5A4-A
• Description: 8BIT MCU, 4K FLASH, 256B RAM, 78F9222
• Manufacturer: NEC

Specifications of UPD78F9222MC(T)-5A4-A

• Controller Family/series: UPD78
• No. Of I/o's: 17
• Ram Memory Size: 256Byte
• Cpu Speed: 10MHz
• No. Of Timers: 4
• No. Of: RoHS Compliant
• Core Size: 8bit
• Program Memory Size: 4KB
• Oscillator Type: External, Internal

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(6) Flash address pointer H compare register and flash address pointer L compare register (FLAPHC and
FLAPLC)
These registers are used to specify the address range in which the internal sequencer operates when the flash
memory is verified in the self programming mode.
Set FLAPHC to the same value as that of FLAPH. Set the last address of the range in which verification is to
be executed to FLAPLC.
These registers are set with a 1-bit or 8-bit memory manipulation instruction.
Reset signal generation clears these registers to 00H.
Caution Be sure to clear bits 4 to 7 of flash address pointer H (FLAPH) and flash address pointer H
Figure 18-15. Format of Flash Address Pointer H/L Compare Registers (FLAPHC/FLAPLC)
Cautions 1. Be sure to clear bits 4 to 7 of flash address pointer H (FLAPH) and flash address
Address: FFA4H, FFA5H
Address: FFA6H, FFA7H
0
0
0
0
compare register (FLAPHC) to 0 before executing the self programming command. If the
self programming command is executed with these bits set to 1, the device may
malfunction.
2. Set the number of the block subject to a block erase, verify, or blank check (same
3. Clear FLAPLC to 00H when a block erase is performed, and FFH when a blank check is
Figure 18-14. Format of Flash Address Pointer H/L (FLAPH/FLAPL)
pointer H compare register (FLAPHC) to 0 before executing the self programming
command. If the self programming command is executed with these bits set to 1, the
device may malfunction.
value as FLAPH) to FLAPHC.
performed.
0
0
FLAPHC (FFA6H)
FLAPH (FFA5H)
0
0
FLAP
FLA
P11
C11
After reset: Undefined
After reset: 00H
FLAP
FLA
P10
C10
CHAPTER 18 FLASH MEMORY
User’s Manual U16898EJ5V0UD
FLAP
FLA
P9
C9
FLAP
FLA
P8
C8
R/W
FLAP
FLA
P7
C7
R/W
FLAP
FLA
P6
C6
FLAP
FLA
P5
C5
FLAPLC (FFA7H)
FLAPL (FFA4H)
FLAP
FLA
P4
C4
FLAP
FLA
P3
C3
FLAP
FLA
P2
C2
FLAP
FLA
P1
C1
FLAP
FLA
P0
C0