参数资料
型号: ADUC7033BSTZ-88-RL
厂商: Analog Devices Inc
文件页数: 86/140页
文件大小: 0K
描述: IC BATT SENSOR PREC 48LQFP
标准包装: 2,000
功能: 电池监控器
电源电压: 3.5 V ~ 18 V
工作温度: -40°C ~ 115°C
安装类型: 表面贴装
封装/外壳: 48-LQFP
供应商设备封装: 48-LQFP(7x7)
包装: 带卷 (TR)
ADuC7033
TIMER4 OR STI TIMER
Timer4 Value Register
Timer4 is a general-purpose, 16-bit, count up/count down
timer with a programmable prescaler. Timer4 can be clocked
from the core clock or the low power 32.768 kHz oscillator with
a prescaler of 1, 16, 256, or 32,768.
Timer4 has a capture register (T4CAP) that is triggered by a
selected IRQ source initial assertion. When triggered, the current
timer value is copied to T4CAP, and the timer continues running.
This feature can be used to determine the assertion of an event
with increased accuracy.
Name:
Address:
Default Value:
Access:
Function:
T4VAL
0xFFFF0384
0xFFFF
Read only
T4VAL is a 16-bit register that holds the
current value of Timer4.
Timer4 is also used to drive the serial test interface (STI)
Timer4 Capture Register
peripheral.
Timer4 interface consists of five MMRs.
Name:
T4CAP
?
?
?
T4LD, T4VAL, and T4CAP are 16-bit registers and hold
16-bit unsigned integers. T4VAL and T4CAP are read only.
T4CLRI is an 8-bit register. Writing any value to this
register clears the interrupt.
T4CON is the configuration MMR described in Table 57.
Address:
Default Value:
Access:
Function:
0xFFFF0390
0x0000
Read only
This is a 16-bit register that holds the 32-bit
Timer4 Load Register
value captured by an enabled IRQ event.
Name:
T4LD
Timer4 Control Register
Address:
Default Value:
Access:
Function:
0xFFFF0380
0x00000
Read/write
T4LD 16-bit register holds the 16-bit value
that is loaded into the counter.
Name:
Address:
Default Value:
Access:
T4CON
0xFFFF0388
0x00000000
Read/write
Timer4 Clear Register
Function:
This 32-bit MMR configures the mode of
operation of Timer4.
Name:
Address:
Access:
Function:
T4CLRI
0xFFFF038C
Write only
This 8-bit, write only MMR is written (with
any value) by user code to clear the interrupt.
16-BIT LOAD
LOW POWER
32.768kHz OSCILLATOR
CORE
CLOCK FREQUENCY
PRESCALER
1, 16, 256, OR 32768
16-BIT
UP/DOWN COUNTER
TIMER4 IRQ
STI
TIMER4
VALUE
IRQ[31:0]
CAPTURE
Figure 38. Timer4 Block Diagram
Rev. B | Page 86 of 140
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