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| 型号： | ADUC845BCPZ8-3 |
| 厂商： | ANALOG DEVICES INC |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, FLASH, 12.58 MHz, MICROCONTROLLER, QCC56 |
| 封装： | 8 X 8 MM, LEAD FREE, MO-220-VLLD-2, LFCSP-56 |
| 文件页数： | 26/108页 |
| 文件大小： | 1940K |
| 代理商： | ADUC845BCPZ8-3 |
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ADuC845/ADuC847/ADuC848
Rev. B | Page 24 of 108
ERS (SFRs)
ssing only. It
r
n the CPU and all on-chip periph-
m
ing the programming model of the
47/
C848 via the SFR area is shown in
he four
pu
gi
de in the SFR area. The SFR
isters in
nt
a registers that
provide an interface b
erals.
SPECIAL FUNCTION REGIST
The SFR space is mapped into the upper 128 bytes of internal
data memory space and accessed by direct addre
provides an inte face betwee
erals. A block diagra
show
ADuC845/ADuC8
ADu
All registers except the program counter (PC) and t
general-
rpose re ster banks resi
reg
clude co rol, configuration, and dat
etween the CPU and all on-chip periph
128-BYTE
SPECIAL
FUNCTION
REGISTER
AREA
62-kBYTE
ELECTRICALLY
REPROGRAMMABLE
NONVOLATILE
FLASH/EE PROGRAM
MEMORY
8051-
COMPATIBLE
CORE
OTHER ON-CHIP
RCES
WDT
PSM
TIC
PWM
PERIPHERALS
TEMPERATURE
SENSOR
CURRENT SOU
12-BIT DAC
SERIAL I/O
Σ- ADC
4-kBYTE
ELECTRICALLY
REPROGRAMMABLE
NONVOLATILE
FLASH/EE DATA
MEMORY
256 BYTES RAM
2kBYTES XRAM
04741-011
Figure 11. Programming Model
Accumulator SFR (ACC)
ACC is the accumulator register, which is used for math opera-
tions including addition, subtraction, integer multiplication and
division, and Boolean bit manipulations. The mnemonics for
accumulator-specific instructions usually refer to the
accumulator as A.
B SFR (B)
The B register is used with the accumulator for multiplication
and division operations. For other instructions, it can be treated
as a general-purpose scratch pad register.
f three 8-bit registers: DPP (page
PP,
C
C848 support dual data
Pointers section.
Stack Pointer (SP and SPH)
RA
ress
of the stack. The SP register
increme
fore
USH and CALL
executions. Although
RAM, the SP register i
his
causes the stack to beg
As mentioned earlier, t
ded 11-bit stack
inter. Th
ree extr
tack
inter are
three L
o
able the
SFR, th
rwise,
SF
om.
ogram Status Word
e PSW S
n
status of the CPU as li
SFR Address:
Power-On Default:
Bit Addressable:
able 5. PSW SFR Bit Designations
Bit No.
Name
Description
Data Pointer (DPTR)
The data pointer is made up o
byte), DPH (high byte), and DPL (low byte). These provide
memory addresses for internal code and data memory access.
The DPTR can be manipulated as a 16-bit register (DPTR =
DPH, DPL), although INC DPTR instructions automatically
carry over to DPP, or as three independent 8-bit registers (D
DPH, DPL).
The ADuC845/ADu 847/ADu
pointers. See the D
The SP SFR is the stack pointer, which is used to hold an
internal
M add
called the top
is
nted be
data is stored during P
the stack can reside anywhere in on-chip
s initialized to 07H after a reset. T
in at location 08H.
he parts offer an exten
po
e th
a bits needed to make up the 11-bit s
po
the
SBs of the SPH byte located at B7H. T
en
SPH
e EXSP (CFG84x.7) bit must be set;
othe
the SPH
R can be neither written to nor read fr
Pr
(PSW)
Th
FR contai s several bits that reflect the current
sted in Table 5.
D0H
00H
Yes
T
7
CY
Carry Flag.
6
AC
Auxiliary Carry Flag.
5
F0
General-Purpose Flag.
4, 3
RS1, RS0
Register Bank Select Bits.
RS1
RS0
Selected Bank
0
1
0
2
1
3
2
OV
Overflow Flag.
1
F1
General-Purpose Flag.
0
P
Parity Bit.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ADUC845BCPZ8-5 | 功能描述:IC MCU FLASH 24BIT ADC 56LFCSP RoHS:是 类别:集成电路 (IC) >> 嵌入式 - 微控制器， 系列:MicroConverter® ADuC8xx 标准包装:38 系列:Encore!® XP® 核心处理器:eZ8 芯体尺寸:8-位 速度:5MHz 连通性:IrDA，UART/USART 外围设备:欠压检测/复位，LED，POR，PWM，WDT 输入/输出数:16 程序存储器容量:4KB（4K x 8） 程序存储器类型:闪存 EEPROM 大小:- RAM 容量:1K x 8 电压 - 电源 (Vcc/Vdd):2.7 V ~ 3.6 V 数据转换器:- 振荡器型:内部 工作温度:-40°C ~ 105°C 封装/外壳:20-SOIC（0.295"，7.50mm 宽） 包装:管件 其它名称:269-4116Z8F0413SH005EG-ND |
| ADUC845BS62-3 | 制造商:Analog Devices 功能描述:MCU 8-Bit ADuC8xx 8052 CISC 62KB Flash 3.3V/5V 52-Pin MQFP 制造商:Rochester Electronics LLC 功能描述:8BIT CISC 62KB FLASH 12.85MHZ 3.3V 52MQFP - Bulk |
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| ADUC845BS8-5 | 制造商:Analog Devices 功能描述:MCU 8-bit ADuC8xx 8052 CISC 62KB Flash 3.3V/5V 52-Pin MQFP 制造商:Rochester Electronics LLC 功能描述:8BIT CISC 62KB FLASH 12.85MHZ 5V 52MQFP - Bulk |
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