MCIMX281AVM4B Freescale Semiconductor, MCIMX281AVM4B Datasheet - Page 1487

• Manufacturer Part Number: MCIMX281AVM4B
• Description: IC MPU I.MX28 1.2 289MAPBGA
• Manufacturer: Freescale Semiconductor
• Series: i.MX28r

Specifications of MCIMX281AVM4B

• 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: Supplier Unconfirmed

required,
Address:
Freescale Semiconductor, Inc.
Reset
Reset
RTC_PRESENT
this chip
WATCHDOG_
XTAL32000_
XTAL32768_
PRESENT
PRESENT
PRESENT
PRESENT
Bit
Bit
W
W
ALARM_
R
R
Field
31
30
29
28
27
31
15
1
0
HW_RTC_STAT
30
14
1
0
}
if(HW_RTC_STAT.WATCHDOG_PRESENT != 0) // then you can use the watchdog timer on
This read-only bit reads back a one if the RTC is present in the device.
This read-only bit reads back a one if the Alarm function is present in the device.
This read-only bit reads back a one if the Watchdog Timer function is present in the device.
This read-only bit reads back a one if the 32.000-kHz crystal oscillator function is present in the device.
This read-only bit reads back a one if the 32.768-kHz crystal oscillator function is present in the device.
printf(" something is stale in one of the digital side registers\n");
// the copy controller will copy analog registers to digtial registers as
// turning off staleregs bits as it goes about its business.
29
13
1
0
i.MX28 Applications Processor Reference Manual, Rev. 1, 2010
NEW_REGS
28
12
0
0
8005_6000h base + 10h offset = 8005_6010h
HW_RTC_STAT field descriptions
27
11
0
0
26
10
0
0
RSVD1
25
0
0
9
Chapter 22 Real-Time Clock Alarm Watchdog Persistent Bits
24
0
0
8
Description
23
1
0
7
22
1
0
6
21
1
5
0
STALE_REGS
20
1
4
0
RSVD0
19
1
0
3
18
1
0
2
17
1
0
1
1487
16
1
0
0