- 您現在的位置：買賣IC網 > PDF目錄374044 > ADUuC7027BSTZ62-RL (Analog Devices, Inc.) Precision Analog Microcontroller 12-bit Analog I/O, ARM7TDMI MCU PDF資料下載
參數資料
| 型號： | ADUuC7027BSTZ62-RL |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | Precision Analog Microcontroller 12-bit Analog I/O, ARM7TDMI MCU |
| 中文描述： | 精密模擬微控制器的12位模擬I / O，ARM7TDMI的微控制器 |
| 文件頁數： | 79/92頁 |
| 文件大小： | 850K |
| 代理商： | ADUUC7027BSTZ62-RL |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁第78頁當前第79頁第80頁第81頁第82頁第83頁第84頁第85頁第86頁第87頁第88頁第89頁第90頁第91頁第92頁
ADuC7019/20/21/22/24/25/26/27
Table 77. T3CON MMR Bit Descriptions
Bit
Value
Description
31:9
Reserved.
8
Count Up.
Set
by user for Timer3 to count up.
Cleared
by user for Timer3 to count down by
default.
7
Timer3 Enable Bit.
Set
by user to enable
Timer3.
Cleared
by user to disable Timer3 by
default.
6
Timer3 Mode.
Set
by user to operate in
periodic mode.
Cleared
by user to operate
in free-running mode. Default mode.
5
Watchdog Mode Enable Bit.
Set
by user to
enable watchdog mode.
Cleared
by user to
disable watchdog mode by default.
4
Secure Clear Bit.
Set
by user to use the secure
clear option.
Cleared
by user to disable the
secure clear option by default.
3:2
Prescale:
00
Source Clock/1 by Default.
01
Source Clock/16.
10
Source Clock/256.
11
Undefined. Equivalent to 00.
1
Watchdog IRQ Option Bit.
Set
by user to
produce an IRQ instead of a reset when
the watchdog reaches 0.
Cleared
by user to
disable the IRQ option.
0
Reserved.
T3CLRI Register
Name
Address
T3CLRI
0xFFFF036C
Rev. A | Page 79 of 92
Default Value
0x00
Access
W
T3CLRI is an 8-bit register. Writing any value to this register
clears the Timer3 interrupt in normal mode or resets a new
timeout period in watchdog mode.
Secure Clear Bit (Watchdog Mode Only)
The secure clear bit is provided for a higher level of protection.
When set, a specific sequential value must be written to T3ICLR
to avoid a watchdog reset. The value is a sequence generated by
the 8-bit linear feedback shift register (LFSR) polynomial = X8
+ X6 + X5 + X + 1 as shown in Figure 67.
0
CLOCK
Q
D
4
Q
D
5
Q
D
3
Q
D
7
Q
D
6
Q
D
2
Q
D
1
Q
D
0
Figure 67. 8-Bit LFSR
The initial value or seed is written to T3ICLR before entering
watchdog mode. After entering watchdog mode, a write to
T3ICLR must match this expected value. If it matches, the
LFSR is advanced to the next state when the counter reload
happens. If it fails to match the expected state, reset is
immediately generated, even if the count has not yet expired.
The value 0×00 should not be used as an initial seed due to the
properties of the polynomial. The value 0×00 is always
guaranteed to force an immediate reset. The value of the LFSR
cannot be read; it must be tracked/generated in software.
Example of a sequence:
1.
Enter initial seed, 0×AA, in T3ICLR before starting Timer3
in watchdog mode.
Enter 0×AA in T3ICLR; Timer3 is reloaded.
Enter 0×37 in T3ICLR; Timer3 is reloaded.
Enter 0×6E in T3ICLR; Timer3 is reloaded.
Enter 0×66. 0×DC was expected; the watchdog reset the chip.
2.
3.
4.
5.
EXTERNAL MEMORY INTERFACING
The ADuC7026 and ADuC7027 are the only models in their
series that feature an external memory interface The external
memory interface requires a larger number of pins. This is why
it is only available on larger pin count packages. The XMCFG
MMR must be set to 1 to use the external port.
Although 32-bit addresses are supported internally, only the
lower 16 bits of the address are on external pins.
The memory interface can address up to four 128 kB of
asynchronous memory (SRAM or/and EEPROM).
The pins required for interfacing to an external memory are
shown in Table 78.
Table 78. External Memory Interfacing Pins
Pin
Function
AD[15:0]
Address/Data Bus
A16
Extended Addressing for 8-Bit Memory Only
MS[3:0]
Memory Select Pins
WR
Write Strobe
RS
Read Strobe
AE
Address Latch Enable
BHE, BLE
Byte Write Capability
There are four external memory regions available as described
in Table 79. Associated with each region are the pins MS[3:0].
These signals allow access to the particular region of external
memory. The size of each memory region can be 128 kB maxi-
mum, 64 k × 16 or 128 k × 8. To access 128 k with an 8-bit
memory, an extra address line (A16) is provided. (See the
example in Figure 68.) The four regions are configured
independently.
Table 79. Memory Regions
Address Start
Address End
0x10000000
0x1000FFFF
0x20000000
0x2000FFFF
0x30000000
0x3000FFFF
0x40000000
0x4000FFFF
Contents
External Memory 0
External Memory 1
External Memory 2
External Memory 3
Each external memory region can be controlled through three
MMRs: XMCFG, XMxCON, and XMxPAR.
相關PDF資料 |
PDF描述 |
|---|---|
| ADV101 | Circular Connector; No. of Contacts:6; Series:LJT07R; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:9; Circular Contact Gender:Socket; Circular Shell Style:Jam Nut Receptacle; Insert Arrangement:9-35 |
| ADV101KN30 | Circular Connector; No. of Contacts:4; Series:LJT07R; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:9; Circular Contact Gender:Pin; Circular Shell Style:Jam Nut Receptacle; Insert Arrangement:9-44 |
| ADV101KN50 | Circular Connector; No. of Contacts:4; Series:LJT07R; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:9; Circular Contact Gender:Socket; Circular Shell Style:Jam Nut Receptacle; Insert Arrangement:9-44 |
| ADV101KN80 | Circular Connector; No. of Contacts:6; Series:LJT07R; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:9; Circular Contact Gender:Pin; Circular Shell Style:Jam Nut Receptacle; Insert Arrangement:9-6 |
| ADV101KP30 | Circular Connector; No. of Contacts:3; Series:LJT07R; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:9; Circular Contact Gender:Pin; Circular Shell Style:Jam Nut Receptacle; Insert Arrangement:9-98 |
相關代理商/技術參數 |
參數描述 |
|---|---|
| ADUX1020BCPZRL7 | 功能描述:Optical Sensor Ambient, Gesture 960nm I2C 8-WFDFN Exposed Pad 制造商:analog devices inc. 系列:- 包裝:剪切帶（CT） 零件狀態:有效 類型:環境，手勢 波長:960nm 接近探測:是 輸出類型:I2C 電壓 - 電源:1.8 V ~ 3.3 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-WFDFN 裸露焊盤 供應商器件封裝:8-LFCSP（2x3） 標準包裝:1 |
| ADUX1020-EVAL-SDP | 功能描述:ADUX1020 - Light and Proximity Sensor Evaluation Board 制造商:analog devices inc. 系列:- 零件狀態:有效 傳感器類型:光線和近程 感應范圍:- 接口:I2C 靈敏度:- 電壓 - 電源:- 嵌入式:- 所含物品:3 個板，線纜 使用的 IC/零件:ADUX1020 標準包裝:1 |
| ADUX1020-EVALZ-LED | 功能描述:ADUX1020 - Interface Board 制造商:analog devices inc. 系列:- 零件狀態:有效 配件類型:接口板 配套使用產品/相關產品:ADUX1020 標準包裝:1 |
| ADV001-00E | 制造商:RHOPOINT 制造商全稱:RHOPOINT COMPONENTS 功能描述:ADV Sensors |
| ADV001-10E | 制造商:RHOPOINT 制造商全稱:RHOPOINT COMPONENTS 功能描述:ADV Sensors |
發布緊急采購，3分鐘左右您將得到回復。