参数资料
型号: ADUC7021BCPZ62-RL7
厂商: Analog Devices Inc
文件页数: 43/92页
文件大小: 0K
描述: IC MCU 12BIT 1MSPS UART 40-LFCSP
标准包装: 750
系列: MicroConverter® ADuC7xxx
核心处理器: ARM7
芯体尺寸: 16/32-位
速度: 44MHz
连通性: EBI/EMI,I²C,SPI,UART/USART
外围设备: PLA,PWM,PSM,温度传感器,WDT
输入/输出数: 13
程序存储器容量: 64KB(32K x 16)
程序存储器类型: 闪存
RAM 容量: 2K x 32
电压 - 电源 (Vcc/Vdd): 2.7 V ~ 3.6 V
数据转换器: A/D 8x12b,D/A 2x12b
振荡器型: 内部
工作温度: -40°C ~ 125°C
封装/外壳: 40-VFQFN 裸露焊盘,CSP
包装: 带卷 (TR)
ADuC7019/20/21/22/24/25/26/27/28
Rev. B | Page 48 of 92
Reset Operation
There are four kinds of reset: external, power-on, watchdog
expiation, and software force. The RSTSTA register indicates
the source of the last reset, and RSTCLR allows clearing of the
RSTSTA register. These registers can be used during a reset
exception service routine to identify the source of the reset.
If RSTSTA is null, the reset is external.
REMAP Register
Name
Address
Access
REMAP
0xFFFF0220
0xXX1
R/W
1 Depends on model.
Table 25. REMAP MMR Bit Designations
Bit
Name
Description
4
Read-Only Bit. Indicates the size of the
Flash/EE memory available. If this bit is set,
only 32 kB of Flash/EE memory is available.
3
Read-Only Bit. Indicates the size of the SRAM
memory available. If this bit is set, only 4 kB of
SRAM is available.
2:1
Reserved.
0
Remap
Remap Bit. Set by user to remap the SRAM to
Address 0x00000000. Cleared automatically
after reset to remap the Flash/EE memory to
Address 0x00000000.
RSTSTA Register
Name
Address
Default Value
Access
RSTSTA
0xFFFF0230
0x01
R/W
Table 26. RSTSTA MMR Bit Designations
Bit
Description
7:3
Reserved.
2
Software Reset. Set by user to force a software reset.
Cleared by setting the corresponding bit in RSTCLR.
1
Watchdog Timeout. Set automatically when a
watchdog timeout occurs. Cleared by setting the
corresponding bit in RSTCLR.
0
Power-On Reset. Set automatically when a power-on
reset occurs. Cleared by setting the corresponding bit in
RSTCLR.
RSTCLR Register
Name
Address
Default Value
Access
RSTCLR
0xFFFF0234
0x00
R/W
Note that to clear the RSTSTA register, users must write the
Value 0x07 to the RSTCLR register.
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