Table 18-21 PROM Mode Commands
1st Cycle
2nd Cycle
Command
Cycles
Mode
Address
Data
Mode
Address
Data
Memory read
1
Write
X
H'00
Read
RA
Dout
Erase setup/erase
2
Write
X
H'20
Write
X
H'20
Erase-verify
2
Write
EA
H'A0
Read
X
EVD
Auto-erase setup/
2
Write
X
H'30
Write
X
H'30
auto-erase
Program setup/
2
Write
X
H'40
Write
PA
PD
program
Program-verify
2
Write
X
H'C0
Read
X
PVD
Reset
2
Write
X
H'FF
Write
X
H'FF
PA:
Program address
EA:
Erase-verify address
RA:
Read address
PD:
Program data
PVD: Program-verify output data
EVD: Erase-verify output data
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