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| 型號： | ADUC7032BSTZ-8V-RL |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 50/128頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC BATTERY SENSOR PREC 48-LQFP |
| 標準包裝： | 1 |
| 系列： | MicroConverter® ADuC7xxx |
| 核心處理器： | ARM7 |
| 芯體尺寸： | 16/32-位 |
| 速度： | 20.48MHz |
| 連通性： | LIN，SPI，UART/USART |
| 外圍設(shè)備： | POR，PSM，溫度傳感器，WDT |
| 輸入/輸出數(shù)： | 9 |
| 程序存儲器容量： | 96KB（48K x 16） |
| 程序存儲器類型： | 閃存 |
| RAM 容量： | 1.5K x 32 |
| 電壓 - 電源 (Vcc/Vdd)： | 3.5 V ~ 18 V |
| 數(shù)據(jù)轉(zhuǎn)換器： | A/D 2x16b |
| 振蕩器型： | 內(nèi)部 |
| 工作溫度： | -40°C ~ 105°C |
| 封裝/外殼： | 48-LQFP |
| 包裝： | 標準包裝 |
| 其它名稱： | ADUC7032BSTZ-8V-RLDKR |
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Preliminary Technical Data
ADuC7032
Rev. PrD | Page 28 of 128
Interrupt latency
The worst case latency for an FIQ consists of the longest time
the request can take to pass through the synchronizer, plus the
time for the longest instruction to complete (the longest
instruction is an LDM) which loads all the registers including
the PC, plus the time for the data abort entry, plus the time for
FIQ entry. At the end of this time, the ARM7TDMI will be
executing the instruction at 0x1C (FIQ interrupt vector
address). The maximum total time is 50 processor cycles, which
is just over 2.44S in a system using a continuous 20.48MHz
processor clock. The maximum IRQ latency calculation is
similar, but must allow for the fact that FIQ has higher priority
and could delay entry into the IRQ handling routine for an
arbitrary length of time. This time may be reduced to 42 cycles
if the LDM command is not used, some compilers have an
option to compile without using this command. Another option
is to run the part in THUMB mode where this is reduced to 22
cycles.
The minimum latency for FIQ or IRQ interrupts is five cycles.
This consists of the shortest time the request can take through
the synchronizer plus the time to enter the exception mode.
Note that the ARM7TDMI will initially (1st instruction) run in
ARM (32-bit) mode when an exception occurs. The user may
immediately switch from ARM mode to Thumb mode if
required, e.g. when executing interrupt service routines.
MEMORY ORGANISATION
The ARM7, a Von Neumann architecture, MCU core sees
memory as a linear array of 232 byte locations. As shown in
Figure 11, the ADuC7032 maps this into 4 distinct user areas
namely, a re-mappable memory area, an SRAM area, a Flash/EE
area and a Memory Mapped Register (MMR) area.
The first 96kBytes of this memory space is used as an area into
which the on-chip Flash/EE or SRAM can be remapped. A
second 4kByte area at the top of the memory map is used to
locate the Memory Mapped Registers (MMR), through which
all on-chip peripherals are configured and monitored. The
remaining 2 areas of memory are constituted as 6kByte of
SRAM and 96kByte of On-Chip Flash/EE memory. 94kByte of
On-Chip Flash/EE memory are available to the user, and the
remaining 2kBytes are reserved for the on-chip Kernel. These
areas are described in more detail below.
Any access, either reading or writing, to an area not defined in
the memory map will result in a Data Abort exception.
Memory Format
The ADuC7032 memory organization is configured in little
endian format: the least significant byte is located in the lowest
byte address and the most significant byte in the highest byte
address.
0
599
4-
0
09
BIT 31
BYTE 2
A
6
2
.
BYTE 3
B
7
3
.
BYTE 1
9
5
1
.
BYTE 0
8
4
0
.
BIT 0
32 BITS
0xFFFFFFFFh
0x00000004h
0x00000000h
Figure 10: Little Endian Format
0
59
94
-01
1
00417FFh
00040000h
FFFF0FFFh
FFFF0000h
MMRs
00097FFFh
00080000h
FLASH/EE
SRAM
0017FFFh
00000000h
RE-MAPPABLE MEMORY SPACE
(FLASH/EE OR SRAM)
RESERVED
Figure 11: ADuC7032 Memory Map
SRAM
6kBytes of SRAM are available to the user, organized as 1536 X
32 bits, i.e. 1536Words, which is located at 0x40000. The RAM
space can be used as data memory and also as a volatile
program space.
ARM code can run directly from SRAM at full clock speed
given that the SRAM array is configured as a 32-bit wide
memory array.
SRAM is read/writeable in 8/16/32 bit segments.
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| ADUC7033BSTZ-88 | 功能描述:IC BATT SENSOR PREC 48LQFP RoHS:是 類別:集成電路 (IC) >> PMIC - 電池管理 系列:- 標準包裝:2,000 系列:Impedance Track™ 功能:燃料，電量檢測計/監(jiān)控器 電池化學:鋰離子（Li-Ion） 電源電壓:2.4 V ~ 2.6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:20-TSSOP（0.173"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:20-TSSOP 包裝:帶卷 (TR) 產(chǎn)品目錄頁面:1020 (CN2011-ZH PDF) 配用:BQ27350EVM-ND - BQ27350EVM 其它名稱:296-21665-2 |
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