参数资料
型号: EP7311-CV-90
厂商: Cirrus Logic Inc
文件页数: 25/42页
文件大小: 0K
描述: IC ARM720T MCU 90MHZ 208-LQFP
标准包装: 36
系列: EP7
核心处理器: ARM7
芯体尺寸: 32-位
速度: 90MHz
连通性: 编解码器,EBI/EMI,IrDA,键盘,多媒体编解码器,SPI/Microwire1,UART/USART
外围设备: LCD,LED,MaverickKey,PWM
输入/输出数: 27
程序存储器类型: ROMless
RAM 容量: 56K x 8
电压 - 电源 (Vcc/Vdd): 2.3 V ~ 2.7 V
振荡器型: 外部
工作温度: 0°C ~ 70°C
封装/外壳: 208-LQFP
包装: 托盘
其它名称: 598-1225
31
4341H–MP3–10/07
AT8xC51SND2C/MP3B
8.
Special Function Registers
The Special Function Registers (SFRs) of the AT8xC51SND2C derivatives fall into the catego-
ries detailed in Table 8-1 to Table . The relative addresses of these SFRs are provided together
with their reset values in Table 8-19. In this table, the bit-addressable registers are identified by
Note 1.
Note:
1. ENBOOT bit is only available in AT89C51SND2C product.
Table 8-1.
C51 Core SFRs
Mnemonic Add Name
7
6
5
4
3
2
1
0
ACC
E0h Accumulator
B
F0h B Register
PSW
D0h Program Status Word
CY
AC
F0
RS1
RS0
OV
F1
P
SP
81h Stack Pointer
DPL
82h Data Pointer Low Byte
DPH
83h Data Pointer High Byte
Table 8-2.
System Management SFRs
Mnemonic Add Name
7
6
5
4
3
2
1
0
PCON
87h Power Control
SMOD1
SMOD0
-
GF1
GF0
PD
IDL
AUXR
8Eh Auxiliary Register 0
-
EXT16
M0
DPHDIS
XRS1
XRS0
EXTRAM
AO
AUXR1
A2h Auxiliary Register 1
-
ENBOOT(
1)
-
GF3
0
-
DPS
NVERS
FBh Version Number
NV7
NV6
NV5
NV4
NV3
NV2
NV1
NV0
Table 8-3.
PLL and System Clock SFRs
Mnemonic Add Name
7
6
5
4
3
2
1
0
CKCON
8Fh Clock Control
-
X2
PLLCON
E9h PLL Control
R1
R0
-
PLLRES
-
PLLEN
PLOCK
PLLNDIV
EEh PLL N Divider
-
N6
N5
N4
N3
N2
N1
N0
PLLRDIV
EFh PLL R Divider
R9
R8
R7
R6
R5
R4
R3
R2
Table 8-4.
Interrupt SFRs
Mnemonic Add Name
7
6
5
4
3
2
1
0
IEN0
A8h Interrupt Enable Control 0
EA
EAUD
EMP3
ES
ET1
EX1
ET0
EX0
IEN1
B1h Interrupt Enable Control 1
-
EUSB
-
EKB
-
ESPI
EI2C
EMMC
IPH0
B7h Interrupt Priority Control High 0
-
IPHAUD
IPHMP3
IPHS
IPHT1
IPHX1
IPHT0
IPHX0
IPL0
B8h Interrupt Priority Control Low 0
-
IPLAUD
IPLMP3
IPLS
IPLT1
IPLX1
IPLT0
IPLX0
IPH1
B3h Interrupt Priority Control High 1
-
IPHUSB
-
IPHKB
IPHADC
IPHSPI
IPHI2C
IPHMMC
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