MCIMX286CVM4B Freescale Semiconductor, MCIMX286CVM4B Datasheet - Page 1490

• Manufacturer Part Number: MCIMX286CVM4B
• Description: IC MPU I.MX286 289MAPBGA
• Manufacturer: Freescale Semiconductor
• Series: i.MX28r

Specifications of MCIMX286CVM4B

• Core Processor: ARM9
• Core Size: 32-Bit
• Speed: 454MHz
• Connectivity: CAN, EBI/EMI, Ethernet, I²C, MMC, SmartCard, SPI, SSI, UART/USART, USB OTG
• Peripherals: DMA, I²S, LCD, POR, PWM, WDT
• Program Memory Size: 128KB (32K x 32)
• Program Memory Type: Mask ROM
• Ram Size: 32K x 32
• Voltage - Supply (vcc/vdd): 1.25 V ~ 5.25 V
• Data Converters: A/D 17x12b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 289-LFBGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Number Of I /o: -
• Eeprom Size: -
• Lead Free Status / Rohs Status: Compliant

Programmable Registers
Address:
Re-
22.8.5 Real-Time Clock Alarm Register (HW_RTC_ALARM)
The 32-bit alarm value is matched against the 32-bit seconds counter to detect an alarm
condition.
HW_RTC_ALARM: 0x040
HW_RTC_ALARM_SET: 0x044
HW_RTC_ALARM_CLR: 0x048
HW_RTC_ALARM_TOG: 0x04C
The 32-bit alarm value can be used to awaken the chip from a power-down state or simply
to cause an interrupt at a specific time. When the chip enters the power-down state, the
shadow register is powered down and loses its state value. When the chip powers up, the
analog side register contents are automatically copied to the shadow register. The reset
value of 0x0 for the digital side register is only visible until the copy controller overwrites
with the value from the analog side. The analog side register resets to zero only upon
power-on reset (POR), i.e., when the battery is first inserted or whenever a battery-less part
is plugged into a power USB or into a wall transformer.
EXAMPLE
1490
set
Bit
W
R
31
0
COUNT
Field
31 0
30
0
29
0
HW_RTC_SECONDS
28
0
HW_RTC_ALARM_WR(60);
Increments once per second.
27
0
26
0
i.MX28 Applications Processor Reference Manual, Rev. 1, 2010
25
0
24
0
23
HW_RTC_SECONDS field descriptions
0
22
0
8005_6000h base + 30h offset = 8005_6030h
21
0
20
0
// generate rtc alarm after 60 seconds
19
0
18
0
17
0
COUNT
16
0
15
0
Description
14
0
13
0
12
0
11
0
10
0
0
9
0
8
Freescale Semiconductor, Inc.
0
7
0
6
0
5
0
4
3
0
0
2
0
1
0
0