SST89C558-33-C-PI 查看數據表（PDF） - Silicon Storage Technology
零件编号
产品描述 (功能)
生产厂家
SST89C558-33-C-PI Datasheet PDF : 50 Pages
| |||
FlashFlex51 MCU
SST89C54 / SST89C58
Preliminary Specifications
Re-Map bits previously in un-programmed state can be Polling
programmed by these commands. The PROG-RB1,
A command that uses the polling method to detect flash
PROG-RB0 sequences are as follows:
operation completion should poll on the Flash_Busy bit
1
(SFST[2]). When Flash_Busy de-asserts (logic 0), the
device is ready for the next operation.
IAP Enable
The BUSY bit (SFST[3]) is provided for Burst-Program.
2
In between bytes within a burst sequence, the Busy bit
Set-Up
MOV SFDT, #55h
will become logic 0 to indicate that the next Burst-
Program byte should be presented. Completion of the full
3
burst cycle is indicated also by Flash_Busy bit (SFST[2]).
Program Re-Map [0]
MOV SFCM, #08h
or
MOV SFCM, #88h
Program Re-Map [1]
MOV SFCM, #09h
or
MOV SFCM, #89h
MOVC instruction may also be used for verification of the
4
Programming and Erase operation of the flash memory.
MOVC command will fail if it is directed at a flash block
that is still busy.
5
6
Polling SFST[2]
Interrupt INT1#
indicates completion OR occurrence completion
7
344 ILL F46.4
8
9
10
11
12
13
14
15
16
© 2000 Silicon Storage Technology, Inc.
29
344-2 8/00
Share Link: 