参数资料
型号: SST89E54RD2A-40-C-NJE
元件分类: 微控制器/微处理器
英文描述: 8-BIT, FLASH, 40 MHz, MICROCONTROLLER, PQCC44
封装: ROHS COMPLIANT, PLASTIC, MS-018AC, LCC-44
文件页数: 16/78页
文件大小: 1671K
代理商: SST89E54RD2A-40-C-NJE
Data Sheet
FlashFlex MCU
SST89E54RD2A/RDA / SST89E58RD2A/RDA
23
2008 Silicon Storage Technology, Inc.
S71339-02-000
02/08
Symbol
Function
IAPEN
Enable IAP operation
0: IAP commands are disabled
1: IAP commands are enabled
SWR
Software Reset
BSEL
Program memory block switching bit
See Figures 3-1 and 3-2 and Table 3-2
Symbol
Function
FIE
Flash Interrupt Enable.
0: INT1# is not reassigned.
1: INT1# is re-assigned to signal IAP operation completion.
External INT1# interrupts are ignored.
FCM[6:0]
Flash operation command
000_0001b Chip-Erase
000_1011b Sector-Erase
000_1101b Block-Erase
000_1100b Byte-Verify1
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.
Symbol
Function
SFAL
Mailbox register for interfacing with flash memory block. (Low order address register).
Symbol
Function
SFAH
Mailbox register for interfacing with flash memory block. (High order address register).
SuperFlash Configuration Register (SFCF)
Location
76543210
Reset Value
B1H
-
IAPEN
----
SWR
BSEL
x0xxxx00b
SuperFlash Command Register (SFCM)
Location
76543210
Reset Value
B2H
FIE
FCM6
FCM5
FCM4
FCM3
FCM2
FCM1
FCM0
00H
SuperFlash Address Registers (SFAL)
Location
76543210
Reset Value
B3H
SuperFlash Low Order Byte Address Register
00H
SuperFlash Address Registers (SFAH)
Location
76543210
Reset Value
B4H
SuperFlash High Order Byte Address Register
00H
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