AT89S8252-24QC ATMEL [ATMEL Corporation], AT89S8252-24QC Datasheet - Page 5

• Manufacturer Part Number: AT89S8252-24QC
• Description: 8-bit Microcontroller with 8K Bytes Flash
• Manufacturer: ATMEL [ATMEL Corporation]

gram memory locations starting at 0000H up to FFFFH.
Note, however, that if lock bit 1 is programmed, EA will be
internally latched on reset.
EA should be strapped to V
tions. This pin also receives the 12-volt programming
enable voltage (V
volt programming is selected.
Table 1. AT89S8252 SFR Map and Reset Values
0D8H
0D0H
0C8H
0C0H
0E8H
0E0H
0B8H
0B0H
0A8H
0A0H
0F8H
0F0H
98H
90H
88H
80H
XX000000
0X000000
00000000
00000000
00000000
00000000
11111111
11111111
00000000
11111111
00000000
11111111
T2CON
SCON
TCON
PSW
ACC
P3
P2
P1
P0
IP
IE
B
PP
) during Flash programming when 12-
XXXXXXXX
XXXXXX00
00000000
00000111
T2MOD
TMOD
SBUF
SP
CC
for internal program execu-
00XXXXXX
00000000
00000000
00000000
RCAP2L
SPSR
DP0L
TL0
00000000
00000000
00000000
RCAP2H
DP0H
TL1
XTAL1
Input to the inverting oscillator amplifier and input to the
internal clock operating circuit.
XTAL2
Output from the inverting oscillator amplifier.
00000000
00000000
00000000
DP1L
TH0
TL2
000001XX
00000000
00000000
00000000
SPCR
DP1H
TH2
TH1
AT89S8252
XXXXXXXX
00000010
WMCON
SPDR
0XXX0000
PCON
0FFH
0F7H
0EFH
0E7H
0DFH
0D7H
0CFH
0C7H
0BFH
0B7H
0AFH
0A7H
9FH
97H
8FH
87H
5