ADUC7034BCPZ-RL Analog Devices Inc, ADUC7034BCPZ-RL Datasheet - Page 78

• Manufacturer Part Number: ADUC7034BCPZ-RL
• Description: IC,Battery Management,LLCC,48PIN,PLASTIC
• Manufacturer: Analog Devices Inc
• Series: MicroConverter® ADuC7xxxr

Specifications of ADUC7034BCPZ-RL

• Core Processor: ARM7
• Core Size: 16/32-Bit
• Speed: 20.48MHz
• Connectivity: LIN, SPI, UART/USART
• Peripherals: POR, PSM, Temp Sensor, WDT
• Number Of I /o: 9
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 3.5 V ~ 18 V
• Data Converters: A/D 2x16b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 115°C
• Package / Case: 48-LFCSP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

ADuC7034
TIMER2—WAKE-UP TIMER
Timer2 is a 32-bit wake-up up/down counter timer with a
programmable prescaler. The prescaler is clocked directly from
one of four clock sources, namely, the core clock (which is the
default selection), the low power 32.768 kHz oscillator, the
external 32.768 kHz watch crystal, or the precision 32.768 kHz
oscillator. The selected clock source can be scaled by a factor of
1, 16, 256, or 32,768. The wake-up timer continues to run when
the core clock is disabled. When the core is operating at 20.48 MHz
and at CD = 0 with a prescaler of 1, a minimum resolution of
48.83 ns results.
The counter can be formatted as a plain 32-bit value or as time
expressed as hours:minutes:seconds:hundredths.
Timer2 reloads the value from T2LD when Timer2 overflows.
The Timer2 interface consists of four MMRS.
•
•
•
T2LD and T2VAL are 32-bit registers and hold 32-bit
unsigned integers. T2VAL is a read only register.
T2CLRI is an 8-bit register. Writing any value to this
register clears the Timer2 interrupt.
T2CON is a configuration MMR and is described in Table 54.
32.768kHz OSCILLATOR
32.768kHz OSCILLATOR
EXTERNAL 32.768kHz
WATCH CRYSTAL
LOW POWER
PRECISION
CLOCK
CORE
Figure 36. Timer2 Block Diagram
1, 16, 256, OR 32,768
Rev. B | Page 78 of 136
PRESCALER
Timer2 Load Register
Name:
Address:
Default Value:
Access:
Function:
Timer2 Clear Register
Name:
Address:
Access:
Function:
Timer2 Value Register
Name:
Address:
Default Value:
Access:
Function:
UP/DOWN COUNTER
32-BIT LOAD
TIMER2
VALUE
32-BIT
T2CLRI
0xFFFF034C
Write only
This 8-bit, write only MMR is written (with
any value) by user code to clear the interrupt.
T2LD
0xFFFF0340
0x00000000
Read/write
T2LD is a 32-bit register that holds the 32-bit
value that is loaded into the counter.
T2VAL
0xFFFF0344
0xFFFFFFFF
Read only
T2VAL is a 32-bit register that holds the
current value of Timer2.
TIMER2 IRQ