SST89V54RD2 Silicon Storage Technology, Inc., SST89V54RD2 Datasheet - Page 20

• Manufacturer Part Number: SST89V54RD2
• Description: Flashflex51 Mcu
• Manufacturer: Silicon Storage Technology, Inc.

Data Sheet
SuperFlash Configuration Register (SFCF)
SuperFlash Command Register (SFCM)
SuperFlash Address Registers (SFAL)
SuperFlash Address Registers (SFAH)
©2007 Silicon Storage Technology, Inc.
Location
Location
Location
Location
B1H
B2H
B3H
B4H
Symbol
IAPEN
SWR
BSEL
Symbol
FIE
FCM[6:0]
Symbol
SFAL
Symbol
SFAH
FIE
7
7
7
7
-
IAPEN
FCM6
6
Function
Enable IAP operation
0: IAP commands are disabled
1: IAP commands are enabled
Software Reset
See Section 10.2, “Software Reset”
Program memory block switching bit
See Figures 3-1 and 3-2 and Table 3-2
6
Function
Flash Interrupt Enable.
0: INT1# is not reassigned.
1: INT1# is re-assigned to signal IAP operation completion.
Flash operation command
000_0001b Chip-Erase
000_1011b Sector-Erase
000_1101b Block-Erase
000_1100b Byte-Verify
000_1110b Byte-Program
000_1111b Prog-SB1
000_0011b Prog-SB2
000_0101b Prog-SB3
000_1001b Prog-SC0
000_1001b Prog-SC1
000_1000bEnable-Clock-Double
All other combinations are not implemented, and reserved for future use.
1. Byte-Verify has a single machine cycle latency and will not generate any INT1# interrupt regardless of FIE.
6
Function
Mailbox register for interfacing with flash memory block. (Low order address register).
6
Function
Mailbox register for interfacing with flash memory block. (High order address register).
External INT1# interrupts are ignored.
SuperFlash High Order Byte Address Register
SuperFlash Low Order Byte Address Register
FCM5
5
5
5
5
-
FCM4
4
4
4
4
-
1
20
FCM3
3
3
3
3
SST89V54RD2/RD / SST89V58RD2/RD
-
FCM2
2
2
2
2
-
FCM1
SWR
1
1
1
1
FCM0
BSEL
FlashFlex MCU
0
0
0
0
S71255-10-000
Reset Value
Reset Value
Reset Value
Reset Value
x0xxxx00b
00H
00H
00H
12/07