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參數(shù)資料
| 型號(hào)： | ADUC7129BSTZ126-RL |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 73/92頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC DAS MCU ARM7 ADC/DDS 80-LQFP |
| 產(chǎn)品培訓(xùn)模塊： | ARM7 Applications & Tools Intro to ARM7 Core & Microconverters Process Control Direct Digital Synthesis Tutorial Series (1 of 7): Introduction |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 系列： | MicroConverter® ADuC7xxx |
| 核心處理器： | ARM7 |
| 芯體尺寸： | 16/32-位 |
| 速度： | 41.78MHz |
| 連通性： | EBI/EMI，I²C，SPI，UART/USART |
| 外圍設(shè)備： | PLA，POR，PWM，PSM，溫度傳感器，WDT |
| 輸入/輸出數(shù)： | 38 |
| 程序存儲(chǔ)器容量： | 126KB（63K x 16） |
| 程序存儲(chǔ)器類型： | 閃存 |
| RAM 容量： | 8K x 8 |
| 電壓 - 電源 (Vcc/Vdd)： | 3 V ~ 3.6 V |
| 數(shù)據(jù)轉(zhuǎn)換器： | A/D 10x12b; D/A 1x10b |
| 振蕩器型： | 內(nèi)部 |
| 工作溫度： | -40°C ~ 125°C |
| 封裝/外殼： | 80-LQFP |
| 包裝： | 標(biāo)準(zhǔn)包裝 |
| 其它名稱： | ADUC7129BSTZ126-RLDKR |
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ADuC7128/ADuC7129
Rev. 0 | Page 75 of 92
TIMER1—GENERAL-PURPOSE TIMER
TIMER1IRQ
CAPTURE
IRQ[31:0]
32-BIT LOAD
32-BIT
UP/DOWN COUNTER
TIMER1 VALUE
PRESCALER
1, 16, 256,
OR 32768
32.768kHz
OSCILLATOR
CORE CLOCK
FREQUENCY
GPIO
06
020
-05
1
Figure 56. Timer1 Block Diagram
Timer1 is a 32-bit general-purpose count down or count up timer
with a programmable prescaler. The prescaler source can be
from the 32 kHz oscillator, the core clock, or one of two external
GPIOs. This source can be scaled by a factor of 1, 16, 256, or
32,768. This gives a minimum resolution of 42 ns when operating
at CD zero, the core is operating at 41.78 MHz, and with a
prescaler of 1 (ignoring external GPIO).
The counter can be formatted as a standard 32-bit value or as
hours:minutes:seconds:hundredths.
Timer1 has a capture register (T1CAP) that can be triggered by
a selected IRQ source initial assertion. Once triggered, the
current timer value is copied to T1CAP, and the timer keeps
running. This feature can be used to determine the assertion of
an event with increased accuracy.
The Timer1 interface consists of five MMRs, as shown in Table
Table 110. Timer1 Interface MMRs
Name
Description
T1LD
A 32-bit register. Holds 32-bit unsigned integers.
This register is read only.
T1VAL
A 32-bit register. Holds 32-bit unsigned integers.
T1CAP
A 32-bit register. Holds 32-bit unsigned integers.
This register is read only.
T1ICLR
An 8-bit register. Writing any value to this register
clears the Timer1 interrupt.
T1CON
The configuration MMR (see Table 111).
Note that if the part is in a low power mode, and Timer1 is
clocked from the GPIO or low power oscillator source, then
Timer1 continues to operate.
Timer1 reloads the value from T1LD either when Timer1
overflows or immediately after T1ICLR is written.
Timer1 Load Register
Name
Address
Default Value
Access
T1LD
0xFFFF0320
0x00000
R/W
T1LD is a 32-bit register that holds the 32-bit value that is loaded
into the counter.
Timer1 Clear Register
Name
Address
Default Value
Access
T1ICLR
0xFFFF032C
0x00
W
This 8-bit, write-only MMR is written (with any value) by user
code to refresh (reload) Timer1.
Timer1 Value Register
Name
Address
Default Value
Access
T1VAL
0xFFFF0324
0x0000
R
T1VAL is a 32-bit register that holds the current value of Timer1.
Timer1 Capture Register
Name
Address
Default Value
Access
T1CAP
0xFFFF0330
0x00
R
This is a 32-bit register that holds the 32-bit value captured by
an enabled IRQ event.
Timer1 Control Register
Name
Address
Default Value
Access
T1CON
0xFFFF0328
0x0000
R/W
This 32-bit MMR configures the mode of operation of Timer1.
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