参数资料
型号: EVAL-ADUC831QSZ
厂商: Analog Devices Inc
文件页数: 8/76页
文件大小: 0K
描述: KIT DEV FOR ADUC831 QUICK START
产品培训模块: Process Control
标准包装: 1
系列: QuickStart™ 套件
类型: MCU
适用于相关产品: ADuC831
所含物品: 评估板、电源、缆线、软件和说明文档
产品目录页面: 739 (CN2011-ZH PDF)
相关产品: ADUC831BCPZ-ND - IC MCU 62K FLASH ADC/DAC 56LFCSP
ADUC831BCPZ-REEL-ND - IC MCU 62K FLASH ADC/DAC 56LFCSP
ADUC831BSZ-REEL-ND - IC MCU 62K FLASH ADC/DAC 52MQFP
ADUC831BSZ-ND - IC ADC/DAC 12BIT W/MCU 52-MQFP
其它名称: EVAL-ADUC831QS
EVAL-ADUC831QS-ND
REV. 0
–16–
ADuC831
Data Pointer (DPTR)
The Data Pointer is made up of three 8-bit registers, named
DPP (page byte), DPH (high byte) and DPL (low byte). These
are used to provide memory addresses for internal and external
code access and external data access. It may be manipulated as
a 16-bit register (DPTR = DPH, DPL), although INC DPTR
instructions will automatically carry over to DPP, or as three
independent 8-bit registers (DPP, DPH, DPL).
The ADuC831 supports dual data pointers. Refer to the Dual
Data Pointer section.
Program Status Word (PSW)
The PSW SFR contains several bits reflecting the current status
of the CPU as detailed in Table I.
SFR Address
D0H
Power-On Default Value
00H
Bit Addressable
Yes
Table I. PSW SFR Bit Designations
Bit
Name
Description
7CYCarry Flag
6ACAuxiliary Carry Flag
5F0General-Purpose Flag
4
RS1
Register Bank Select Bits
3
RS0
RS1
RS0
Selected Bank
000
011
102
113
2OVOverflow Flag
1F1General-Purpose Flag
0P
Parity Bit
Power Control SFR (PCON)
The PCON SFR contains bits for power-saving options and
general-purpose status flags as shown in Table II.
SFR Address
87H
Power-On Default Value
00H
Bit Addressable
No
Table II. PCON SFR Bit Designations
Bit
Name
Description
7
SMOD
Double UART Baud Rate
6
SERIPD
I
2C/SPI Power-Down Interrupt Enable
5
INT0PD
INT0 Power-Down Interrupt Enable
4
ALEOFF
Disable ALE Output
3
GF1
General-Purpose Flag Bit
2
GF0
General-Purpose Flag Bit
1PD
Power-Down Mode Enable
0
IDL
Idle Mode Enable
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