參數(shù)資料
型號: ATAM893T-TKSYD
廠商: Atmel
文件頁數(shù): 32/98頁
文件大小: 0K
描述: IC MCU FLASH 4K MTP 20SSOP
標(biāo)準(zhǔn)包裝: 830
系列: MARC4
核心處理器: MARC4
芯體尺寸: 4-位
速度: 4MHz
連通性: SSI(2 線,3 線)
外圍設(shè)備: 欠壓檢測/復(fù)位,POR,PWM,WDT
輸入/輸出數(shù): 16
程序存儲器容量: 4KB(4K x 8)
程序存儲器類型: EEPROM
EEPROM 大小: 64 x 16
RAM 容量: 256 x 4
電壓 - 電源 (Vcc/Vdd): 1.8 V ~ 6.5 V
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 125°C
封裝/外殼: 20-SOIC(0.209",5.30mm 寬)
包裝: 管件
38
4680C–4BMCU–01/05
ATAM893-D
Mode 2: 8-bit Compare Counter with 4-bit Programmable Prescaler
The 4-bit stage is used as a programmable prescaler for the 8-bit counter stage. In this mode, a
duty cycle stage is also available. This stage can be used as an additional 2-bit prescaler or for
generating duty cycles of 25%, 33% and 50%. The 4-bit compare output (CM1) supplies the
clock output (POUT) with clocks.
Figure 5-12. 8-bit Compare Counter
Mode 3/4: 8-bit Compare Counter and 4-bit Programmable Prescaler
In these modes the 4-bit and the 8-bit counter stages work independently as a 4-bit prescaler
and an 8-bit timer with an 2-bit prescaler or as a duty cycle generator. Only in the mode 3 and
mode 4, can the 8-bit counter be supplied via the external clock input (T2I) which is selected via
the P4CR register. The 4-bit prescaler is started via activating of mode 3 and stopped and reset
in mode 4. Changing mode 3 and 4 has no effect for the 8-bit timer stage. The 4-bit stage can be
used as prescaler for Timer 3, the SSI or to generate the stop signal for modulator 2 and
modulator 3.
Figure 5-13. 4-/8-bit Compare Counter
4-bit counter
4-bit compare
RES
4-bit register
CM1
POUT
8-bit counter
8-bit compare
8-bit register
OVF2
CM2
RES
T2RM
T2OTM
Timer 2
output mode
and T2OTM-bit
T2IM
T2CTM
TOG2
INT4
CL2/1
DCG
T2D1, 0
DCGO
4-bit counter
4-bit compare
RES
4-bit register
8-bit counter
8-bit compare
8-bit register
OVF2
CM2
RES
T2RM
T2OTM
Timer 2
output mode
and T2OTM-bit
T2IM
T2CTM
TOG2
INT4
CL2/2
DCG
T2D1, 0
DCGO
P41M2, 1
P4CR
CM1
POUT
CL2/1
MUX
TOG3
T1OUT
SYSCL
SCL
T2CS1, 0
SYSCL
T2I
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