ADUC7020BCPZ62I-RL Analog Devices Inc, ADUC7020BCPZ62I-RL Datasheet - Page 51

• Manufacturer Part Number: ADUC7020BCPZ62I-RL
• Description: IC,MICROCONTROLLER,16-BIT,ARM7 CPU,CMOS,LLCC,40PIN,PLASTIC
• Manufacturer: Analog Devices Inc
• Series: MicroConverter® ADuC7xxxr

Specifications of ADUC7020BCPZ62I-RL

• Core Processor: ARM7
• Core Size: 16/32-Bit
• Speed: 44MHz
• Connectivity: EBI/EMI, I²C, SPI, UART/USART
• Peripherals: PLA, PWM, PSM, Temp Sensor, WDT
• Number Of I /o: 14
• Program Memory Size: 62KB (62K x 8)
• Program Memory Type: FLASH
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 3.6 V
• Data Converters: A/D 5x12b; D/A 4x12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 40-LFCSP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: EVAL-ADUC7020QSZ - KIT DEV ADUC7020 QUICK STARTEVAL-ADUC7020MKZ - KIT MINI DEV FOR ADUC7026/7027
• Eeprom Size: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Reset Operation
There are four kinds of reset: external, power-on, watchdog
expiration, 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.
Table 44. REMAP Register
Name
REMAP
1
Table 45. REMAP MMR Bit Designations
Bit
4
3
2:1
0
Depends on the model.
Name
Remap
Address
0xFFFF0220
Description
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.
Read-only bit. Indicates the size of the SRAM
memory available. If this bit is set, only 4 kB of
SRAM is available.
Reserved.
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.
Default Value
0xXX
1
Access
R/W
Rev. C | Page 51 of 96
Table 46. RSTSTA Register
Name
RSTSTA
Table 47. RSTSTA MMR Bit Designations
Bit
7:3
2
1
0
RSTCLR Table 48. Register
Name
RSTCLR
Note that to clear the RSTSTA register, the user must write 0x07
to the RSTCLR register.
ADuC7019/20/21/22/24/25/26/27/28/29
Description
Reserved.
Software reset. Set by user to force a software reset.
Cleared by setting the corresponding bit in RSTCLR.
Watchdog timeout. Set automatically when a watchdog
timeout occurs. Cleared by setting the corresponding
bit in RSTCLR.
Power-on reset. Set automatically when a power-on
reset occurs. Cleared by setting the corresponding bit
in RSTCLR.
Address
0xFFFF0230
Address
0xFFFF0234
Default Value
0x01
Default Value
0x00
Access
R/W
Access
W