SST89E554 查看數據表（PDF） - Silicon Storage Technology
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SST89E554 Datasheet PDF : 58 Pages
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FlashFlex51 MCU
SST89E564 / SST89V564 / SST89E554 / SST89V554
Preliminary Specifications
TABLE 3-5: CPU RELATED SFRS
Symbol Description
ACC1 Accumulator
B1
B Register
PSW1 Program Status
Word
SP
Stack Pointer
DPL Data Pointer
Low
DPH
Data Pointer
High
IE1
Interrupt Enable
IEA1
Interrupt
Enable A
IP1
Interrupt Priority
Reg
IPH
Interrupt Priority
Reg High
IPA1
Interrupt Priority
Reg A
IPAH
Interrupt Priority
Reg A High
PCON Power Control
AUXR Auxiliary Reg
AUXR1 Auxiliary Reg 1
1. Bit Addressable SFRs
Direct
Address
E0H
F0H
D0H
81H
82H
83H
A8H
E8H
B8H
B7H
F8H
F7H
87H
8EH
A2H
Bit Address, Symbol, or Alternative Port Function
MSB
ACC[7:0]
B[7:0]
CY
AC
F0 RS1 RS0 OV
F1
SP[7:0]
DPL[7:0]
DPH[7:0]
EA
-
ET2 ES0 ET1 EX1 ET0
-
-
-
- EBO -
-
-
-
PT2 PS PT1 PX1 PT0
-
-
PT2H PSH PT1H PX1H PT0H
-
-
-
- PBO -
-
-
-
-
SMOD1 SMOD0
-
-
-
-
BOF
-
-
-
POF
-
-
PBO
H
GF1
-
GF2
-
-
GF0
PD
- EXTRAM
0
-
LSB
P
EX0
-
PX0
PX0H
-
-
IDL
AO
DPS
RESET
Value
00H
00H
00H
07H
00H
00H
40H
xxxx0xxxb
xx000000b
xx000000b
xxxx0xxxb
xxxx0xxxb
00010000b
xxxxxxx00b
xxxx00x0b
T3-5.10 384
TABLE 3-6: FLASH MEMORY PROGRAMMING SFRS
Symbol Description
SFST
SuperFlash
Status
SFCF SuperFlash
Configuration
SFCM SuperFlash
Command
SFDT SuperFlash
Data
SFAL
SuperFlash
Address Low
SFAH
SuperFlash
Address High
Direct
Address
B6H
B1H
B2H
B5H
B3H
B4H
Bit Address, Symbol, or Alternative Port Function
MSB
SECD1 SECD2 SECD3 - - FLASH_BUSY -
LSB
-
-
IAPEN
-
--
-
SWR BSEL
FIE
FCM
SuperFlash Data Register
SuperFlash Low Order Byte Address Register - A7 toA0 (SFAL)
SuperFlash High Order Byte Address Register - A15 toA8 (SFAH)
RESET
Value
xxxxx0xxb
x0xxxxxxb
00H
00H
00H
00H
T3-6.6 384
©2001 Silicon Storage Technology, Inc.
14
S71181-03-000 9/01 384
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