DSP56F801 Motorola Inc, DSP56F801 Datasheet - Page 20

• Manufacturer Part Number: DSP56F801
• Description: 56F801 16-bit Hybrid Controller
• Manufacturer: Motorola Inc

3.4 Flash Memory Characteristics
20
1. X address enable, all rows are disabled when XE = 0
2. Y address enable, YMUX is disabled when YE = 0
3. Sense amplifier enable
4. Output enable, tri-state Flash data out bus when OE = 0
5. Defines program cycle
6. Defines erase cycle
7. Defines mass erase cycle, erase whole block
8. Defines non-volatile store cycle
Word Program
Page Erase
Mass Erase
Word program
Standby
Data Invalid State
Page erase
Mass erase
Mode
Read
Mode
Read
Data1 Valid
Data1
XE
H
H
H
H
L
Data Active
1
Table 3-5 Flash Memory Truth Table
YE
Program information block
H
H
L
L
L
Table 3-6 IFREN Truth Table
Erase information block
Read information block
2
Figure 3-3 Signal States
56F801 Technical Data, Rev. 16
Erase both block
Data2 Valid
IFREN = 1
SE
Data2
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
IFREN = 0
Data3 Valid
Data Active
Data3
MAS1
H
L
L
L
L
Freescale Semiconductor
7
NVSTR
H
H
H
L
L
8