DSP56F803 Motorola Inc, DSP56F803 Datasheet - Page 20

• Manufacturer Part Number: DSP56F803
• Description: 16-bit Hybrid Controller
• Manufacturer: Motorola Inc

3.4 Flash Memory Characteristics
20
Standby
Read
Word Program
Page Erase
Mass Erase
Read
Word program
Page erase
Mass erase
1.
2.
3.
4.
5.
6.
7.
8.
Data Invalid State
X address enable, all rows are disabled when XE = 0
Y address enable, YMUX is disabled when YE = 0
Sense amplifier enable
Output enable, tri-state Flash data out bus when OE = 0
Defines program cycle
Defines erase cycle
Defines mass erase cycle, erase whole block
Defines non-volatile store cycle
Mode
Data1 Valid
Mode
Data1
Data Active
XE
H
H
H
H
L
Freescale Semiconductor, Inc.
1
Table 23. Flash Memory Truth Table
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YE
Program information block
H
H
L
L
L
Table 24. IFREN Truth Table
Erase information block
Read information block
2
Data2 Valid
Erase both block
Figure 5. Signal States
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Data2
IFREN = 1
SE
H
L
L
L
L
3
OE
H
L
L
L
L
4
PROG
Tri-stated
H
L
L
L
L
Data
5
ERASE
Program main memory block
Erase main memory block
Erase main memory block
Read main memory block
H
H
L
L
L
6
Data3 Valid
IFREN = 0
Data3
Data Active
MAS1
56F803 Technical Data
H
L
L
L
L
7
NVSTR
H
H
H
L
L
8