AT89C51SND1C-ROTIL ATMEL Corporation, AT89C51SND1C-ROTIL Datasheet - Page 21

• Manufacturer Part Number: AT89C51SND1C-ROTIL
• Description: Single-Chip Microcontroller with MP3 Decoder and Man-Machine Interface
• Manufacturer: ATMEL Corporation

Table 33. SFR Addresses and Reset Values
Notes:
4106F–8051–10/02
Reserved
F8h
F0h
E8h
E0h
D8h
D0h
C8h
C0h
B8h
B0h
A8h
A0h
98h
90h
88h
80h
1. SFR registers with least significant nibble address equal to 0 or 8 are bit-addressable.
2. NVERS reset value depends on the silicon version.
3. FCON register is only available in AT89C51SND1C product.
4. FCON reset value is 00h in case of reset with hardware condition.
5. CKCON reset value depends on the X2B bit (programmed or unprogrammed) in the Hardware Byte.
XXXX 1111
X000 0000
0000 0000
0000 0000
0000 0000
0000 0000
0000 0001
0000 0000
0000 0000
0000 0000
MP3STA
1111 1111
1111 1111
1111 1111
1111 1111
1111 1111
UEPINT
TCON
SCON
PSW
ACC
IEN0
IPL0
P5
P4
P3
P2
P1
P0
0/8
0/8
B
1
1
1
1
1
1
1
1
1
1
1
1
1
XXXX XXXX
XXXX XXXX
1111 0000
0000 1000
0000 0000
0000 0000
0000 0000
0000 0000
0000 0000
0000 0111
PLLCON
DAT16H
SADDR
SADEN
FCON
TMOD
SBUF
IEN1
BRL
1/9
SP
1/9
3
4
XXXX 00X0
XXX0 0000
AUDCON0
0000 0000
0000 0000
0000 0000
0000 0000
0000 0000
0000 0000
0000 1000
0000 0000
0000 0000
UBYCTLX
0011 1111
MP3CON
BDRCON
UFNUML
USBCLK
UEPIEN
ADCLK
AUXR1
IPL1
DPL
TL0
2/A
2/A
AUDCON1
1000 0100
0000 0000
0000 0000
0001 0100
0000 0000
0000 0000
1011 0010
0000 0000
0000 0000
0000 0000
0000 1111
UFNUMH
MP3CLK
NVERS
ADCON
SPCON
KBCON
SSCON
IPH1
DPH
TL1
3/B
3/B
2
UEPCONX
0000 0000
0000 0000
0000 0000
0000 0000
0000 0000
0000 0000
0000 0000
0000 0000
0000 0000
0000 0000
1100 0000
MMCON0
1111 1000
1111 1111
USBCON
AUDCLK
MP3BAS
MP3DAT
AUDSTA
MMDAT
SPSTA
KBSTA
SSSTA
ADDL
TH0
4/C
4/C
XXXX XXXX
0000 0000
0000 0000
0000 0000
0000 0000
0000 0000
0000 0000
0000 0000
0000 0000
MMCON1
1111 1111
MP3MED
1111 1111
1111 1111
MP3ANC
MMCMD
UEPRST
AUDDAT
USBINT
MMCLK
SPDAT
SSDAT
ADDH
TH1
5/D
5/D
XXXX XXXX
USBADDR
X000 1101
0000 0000
0000 0000
0000 0000
0000 0000
1000 0000
0001 0000
0000 0000
0000 0000
UEPSTAX
MMCON2
1111 1110
PLLNDIV
WDTRST
MP3TRE
MP3VOL
USBIEN
MMSTA
SSADR
AT8xC51SND1C
AUXR
6/E
6/E
XXXX X000
0000 000X
XXXX 0000
X000 0000
0000 0000
0000 0011
UEPDATX
0000 0000
0000 0000
0100 0001
0000 0000
MP3STA1
WDTPRG
UEPNUM
PLLRDIV
1111 1111
MP3VOR
MMMSK
CKCON
MMINT
PCON
IPH0
7/F
7/F
5
EFh
DFh
D7h
CFh
C7h
BFh
AFh
FFh
F7h
E7h
B7h
A7h
9Fh
8Fh
97h
87h
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