Z51F0410 Datasheet, PDF (160/184 Pages) Zilog, Inc. – Z8051 Series 8-Bit Microcontrollers

Z51F0410
Product Specification
WRITE
READ
nFERST
nPBRST
1
0
Don’t exit from program mode
1
1
Exit from program mode
Start to program or erase of Flash and data EEPROM. It is cleared
automatically after 1 clock
0
No operation
1
Start to program or erase of Flash and data EEPROM
Start auto-verify of Flash or data EEPROM. It is cleared automatically after
1 clock
0
No operation
1
Start auto-verify of Flash or data EEPROM
Reset Flash or data EEPROM control logic. It is cleared automatically
after 1 clock
0
No operation
1
Reset Flash or data EEPROM control logic.
Reset page buffer with PBUFF. It is cleared automatically after 1 clock
PBUFF nPBRST Description
0
0
Page buffer reset
1
0
Write checksum reset
WRITE and READ bits can be used in program, erase and verify mode with FEAR registers. Read or writes for
memory cell or page buffer uses read and write enable signals from memory controller. Indirect address mode
with FEAR is only allowed to program, erase and verify
FESR (Flash and EEPROM Status Register) : ECH
7
PEVBSY
R
6
VFYGOOD
R/W
5
PCRCRD
R/W
4
ENCRYPT
R/W
3
ROMINT
R/W
2
WMODE
R
1
0
EMODE
VMODE
R
R
Initial value : 80H
PEVBSY
VFYGOOD
PCRCRD
ENCRYPT
ROMINT
WMODE
EMODE
VMODE
Operation status flag. It is cleared automatically when operation starts.
Operations are program, erase or verification
0
Busy (Operation processing)
1
Complete Operation
Auto-verification result flag.
0
Auto-verification fails
1
Auto-verification successes
CRC Calculation Data Read Control
0
FEARH, FEARM, FEARL represents 24bit Checksum
1
FEARM, FEARL represent 16bit CRC result
Encryption Mode Control for PGM
0
Normal Data PGM Mode
1
Encryption PGM Mode
Flash and Data EEPROM interrupt request flag. Auto-cleared when
program/erase/verify starts. Active in program/erase/verify completion
0
No interrupt request.
1
Interrupt request.
Write mode flag
Erase mode flag
Verify mode flag
FEARL (Flash and EEPROM address low Register) : F2H
PS029502-0212
PRELIMINARY
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