AT83C51SND1C_03 ATMEL [ATMEL Corporation], AT83C51SND1C_03 Datasheet - Page 30

• Manufacturer Part Number: AT83C51SND1C_03
• Description: Single-Chip Flash Microcontroller with MP3 Decoder and Human Interface
• Manufacturer: ATMEL [ATMEL Corporation]

Special Function
Registers
Table 30. C51 Core SFRs
Table 31. System Management SFRs
Note:
Table 32. PLL and System Clock SFRs
Table 33. Interrupt SFRs
30
ACC
B
PSW
SP
DPL
DPH
PCON
AUXR
AUXR1
NVERS
CKCON
PLLCON
PLLNDIV
PLLRDIV
IEN0
IEN1
IPH0
IPL0
IPH1
IPL1
Mnemonic Add Name
Mnemonic Add Name
Mnemonic Add Name
Mnemonic Add Name
1. ENBOOT bit is only available in AT89C51SND1C product.
AT8xC51SND1C
D0h Program Status Word
FBh Version Number
EEh PLL N Divider
EFh PLL R Divider
A8h Interrupt Enable Control 0
B1h Interrupt Enable Control 1
E0h Accumulator
F0h B Register
81h Stack Pointer
82h Data Pointer Low Byte
83h Data Pointer High Byte
87h Power Control
8Eh Auxiliary Register 0
A2h Auxiliary Register 1
8Fh Clock Control
E9h PLL Control
B7h Interrupt Priority Control High 0
B8h Interrupt Priority Control Low 0
B3h Interrupt Priority Control High 1
B2h Interrupt Priority Control Low 1
The Special Function Registers (SFRs) of the AT8xC51SND1C derivatives fall into the
categories detailed in Table 30 to Table 46. The relative addresses of these SFRs are
provided together with their reset values in Table 47. In this table, the bit-addressable
registers are identified by Note 1.
SMOD1
NV7
CY
R1
R9
EA
7
7
7
7
-
-
-
-
-
-
-
-
-
IPHAUD
IPHUSB
SMOD0
IPLAUD
IPLUSB
EXT16
EAUD
EUSB
NV6
AC
R0
N6
R8
6
6
6
6
-
-
ENBOOT
IPHMP3
IPLMP3
EMP3
NV5
M0
N5
R7
F0
5
5
5
5
-
-
-
-
-
-
(1)
DPHDIS
IPHKB
IPLKB
IPHS
IPLS
RS1
NV4
EKB
ES
N4
R6
4
4
4
4
-
-
-
-
PLLRES
IPHADC
IPLADC
EADC
IPHT1
XRS1
IPLT1
RS0
GF1
GF3
NV3
ET1
N3
R5
3
3
3
3
-
IPHSPI
IPLSPI
IPHX1
IPLX1
XRS0
ESPI
GF0
NV2
EX1
OV
N2
R4
2
2
0
2
2
-
-
EXTRAM
IPHI2C
PLLEN
IPLI2C
IPHT0
IPLT0
EI2C
NV1
ET0
PD
R3
F1
N1
1
1
1
1
-
-
4109E–8051–06/03
IPHMMC
IPLMMC
PLOCK
EMMC
IPHX0
IPLX0
DPS
NV0
EX0
IDL
AO
N0
R2
X2
P
0
0
0
0