參數(shù)資料
型號(hào): AT32AP7002-CTUT
廠商: Atmel
文件頁(yè)數(shù): 63/83頁(yè)
文件大?。?/td> 0K
描述: IC MCU 32BIT AVR32 196-CBGA
產(chǎn)品培訓(xùn)模塊: MCU Product Line Introduction
標(biāo)準(zhǔn)包裝: 945
系列: AVR®32 AP7
核心處理器: AVR
芯體尺寸: 32-位
速度: 150MHz
連通性: EBI/EMI,I²C,MMC,PS2,SPI,SSC,UART/USART,USB
外圍設(shè)備: AC'97,DMA,I²S,LCD,POR,PWM,WDT
輸入/輸出數(shù): 85
程序存儲(chǔ)器類型: ROMless
RAM 容量: 32K x 8
電壓 - 電源 (Vcc/Vdd): 1.65 V ~ 1.95 V
數(shù)據(jù)轉(zhuǎn)換器: D/A 2x16b
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 85°C
封裝/外殼: 196-CBGA
包裝: 托盤
配用: ATAVRONEKIT-ND - KIT AVR/AVR32 DEBUGGER/PROGRMMR
ATNGW100-ND - KIT AVR32 NETWORK GATEWAY
ATSTK1000-ND - KIT STARTER FOR AVR32AP7000
dsPIC30F2010
DS70118J-page 58
2011 Microchip Technology Inc.
FIGURE 9-1:
16-BIT TIMER1 MODULE BLOCK DIAGRAM (TYPE A TIMER)
9.1
Timer Gate Operation
The 16-bit timer can be placed in the Gated Time Accu-
mulation mode. This mode allows the internal TCY to
increment the respective timer when the gate input sig-
nal (T1CK pin) is asserted high. Control bit TGATE
(T1CON<6>) must be set to enable this mode. The
timer must be enabled (TON = 1) and the timer clock
source set to internal (TCS = 0).
When the CPU goes into the Idle mode, the timer will
stop incrementing, unless TSIDL = 0. If TSIDL = 1, the
timer will resume the incrementing sequence upon
termination of the CPU Idle mode.
9.2
Timer Prescaler
The input clock (FOSC/4 or external clock) to the 16-bit
Timer, has a prescale option of 1:1, 1:8, 1:64, and
1:256
selected
by
control
bits
TCKPS<1:0>
(T1CON<5:4>). The prescaler counter is cleared when
any of the following occurs:
A write to the TMR1 register
Clearing of the TON bit (T1CON<15>)
Device Reset such as POR and BOR
However, if the timer is disabled (TON = 0), then the
timer prescaler cannot be reset since the prescaler
clock is halted.
TMR1 is not cleared when T1CON is written. It is
cleared by writing to the TMR1 register.
9.3
Timer Operation During Sleep
Mode
During CPU Sleep mode, the timer will operate if:
The timer module is enabled (TON = 1) and
The timer clock source is selected as external
(TCS = 1) and
The TSYNC bit (T1CON<2>) is asserted to a logic
‘0’, which defines the external clock source as
asynchronous
When all three conditions are true, the timer will
continue to count up to the period register and be Reset
to 0x0000.
When a match between the timer and the period regis-
ter occurs, an interrupt can be generated, if the
respective timer interrupt enable bit is asserted.
TON
Sync
SOSCI
SOSCO/
PR1
T1IF
Equal
Comparator x 16
TMR1
Reset
LPOSCEN
Event Flag
1
0
TSYNC
Q
D
CK
TGATE
TCKPS<1:0>
Prescaler
1, 8, 64, 256
2
TGATE
TCY
1
0
T1CK
TCS
1 X
0 1
TG
A
T
E
0 0
(3)
Gate
Sync
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