MCIMX281AVM4B Freescale Semiconductor, MCIMX281AVM4B Datasheet - Page 1495

• 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

The register initalizes to a known reset pattern. The copy controller overwrites this digital
reset value very soon after power on but not in zero time.
EXAMPLE
Address:
Re-
22.8.9 Persistent State Register 2 (HW_RTC_PERSISTENT2)
The 32-bit persistent registers are used to retain certain control states during chip-wide
power-down states.
HW_RTC_PERSISTENT2: 0x080
HW_RTC_PERSISTENT2_SET: 0x084
HW_RTC_PERSISTENT2_CLR: 0x088
HW_RTC_PERSISTENT2_TOG: 0x08C
The register initalizes to a known reset pattern. The copy controller overwrites this digital
reset value very soon after power on but not in zero time.
EXAMPLE
Freescale Semiconductor, Inc.
set
Bit
W
analog side via the copy controller
R
GENERAL
31
0
Field
31 0
30
0
29
0
HW_RTC_PERSISTENT1
28
0
HW_RTC_PERSISTENT1_WR(0x12345678); // this write will ultimately push data to the
HW_RTC_PERSISTENT2_WR(0x12345678); // this write will ultimately push data to the
Firmware use, defined as follows:
0x1000
0x0800
0x0400
0x0200
0x0100
0x0080
27
0
26
0
i.MX28 Applications Processor Reference Manual, Rev. 1, 2010
25
0
ENUMERATE_500MA_TWICE — Enumerate at 500mA twice before dropping back to 100mA.
USB_BOOT_PLAYER_MODE — Boot to player when connected to USB.
SKIP_CHECKDISK — Run Checkdisk flag.
USB_LOW_POWER_MODE — USB Hi/Lo Current select.
OTG_HNP_BIT — HNP has been required if set to one.
OTG_ATL_ROLE_BIT — USB role.
24
0
HW_RTC_PERSISTENT1 field descriptions
23
0
22
0
21
0
8005_6000h base + 70h offset = 8005_6070h
20
0
19
0
18
0
17
0
GENERAL
Chapter 22 Real-Time Clock Alarm Watchdog Persistent Bits
16
0
15
0
Description
14
0
13
0
12
0
11
0
10
0
0
9
0
8
0
7
0
6
0
5
0
4
3
0
0
2
0
1
1495
0
0