FlashFlex51 MCU
SST89E52RD2 / SST89E54RD2 / SST89E58RD2 / SST89E516RD2
SST89V52RD2 / SST89V54RD2 / SST89V58RD2 / SST89V516RD2
Preliminary Specifications
SPI Data Register (SPDR)
Location
7
6
5
4
3
2
1
0
Reset Value
86H
SPDR[7:0]
00H
Power Control Register (PCON)
Location
7
6
5
4
3
2
1
0
Reset Value
87H
SMOD1
SMOD0
BOF
POF
GF1
GF0
PD
IDL
00010000b
Symbol
Function
SMOD1
Double Baud rate bit. If SMOD1 = 1, Timer 1 is used to generate the baud rate, and the
serial port is used in modes 1, 2, and 3.
SMOD0
BOF
FE/SM0 Selection bit.
0: SCON[7] = SM0
1: SCON[7] = FE,
Brown-out detection status bit, this bit will not be affected by any other reset. BOF
should be cleared by software. Power-on reset will also clear the BOF bit.
0: No brown-out.
1: Brown-out occurred
POF
Power-on reset status bit, this bit will not be affected by any other reset. POF should be
cleared by software.
0: No Power-on reset.
1: Power-on reset occurred
GF1
GF0
PD
General-purpose flag bit.
General-purpose flag bit.
Power-down bit, this bit is cleared by hardware after exiting from power-down mode.
0: Power-down mode is not activated.
1: Activates Power-down mode.
IDL
Idle mode bit, this bit is cleared by hardware after exiting from idle mode.
0: Idle mode is not activated.
1: Activates idle mode.
©2004 Silicon Storage Technology, Inc.
S71255-00-000
3/04
31
SST [ SILICON STORAGE TECHNOLOGY, INC ]
