Z51F0410 Datasheet, PDF (169/184 Pages) Zilog, Inc. – Z8051 Series 8-Bit Microcontrollers

Z51F0410
Product Specification
8.4.1.10 OTP program verify mode
Step 1. Enable program mode.
Step 2. Set program verify mode. FEMR:1010_0111
Step 3. Read data from Flash.
8.4.1.11 Flash erase verify mode
Step 1. Enable program mode.
Step 2. Set erase verify mode. FEMR:1001_0011
Step 3. Read data from Flash.
8.4.1.12 Flash page buffer read
Step 1. Enable program mode.
Step 2. Select page buffer. FEMR:1000_1001
Step 3. Read data from Flash.
8.4.2 Data EEPROM operation
Program and erase operation of Data EEPROM are executed by direct and indirect address mode.
Direct address mode uses external data area of 8051. Indirect address mode uses address register of
SFR area..
8.4.2.1 Data EEPROM Read
Step 1. Enter OCD(=ISP) mode.
Step 2. Set ENBDM bit of BCR.
Step 3. Enable debug and Request debug mode.
Step 4. Read data from Data EEPROM.
8.4.2.2 Enable program mode
Step 1. Enter OCD(=ISP) mode.¹
Step 2. Set ENBDM bit of BCR.
Step 3. Enable debug and Request debug mode.
Step 4. Enter program/erase mode sequence.²
(1) Write 0xA5 to FEDR.
(2) Write 0x5A to FEDR.
1 _{Refer to how to enter ISP mode..}
2 _{Command sequence to activate data EEPROM write/erase mode. It is composed of sequentially}
writing to data register(FEDR)
PS029502-0212
PRELIMINARY
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