MCIMX281AVM4B Freescale Semiconductor, MCIMX281AVM4B Datasheet - Page 1364

• 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

Programmable Registers
19.4.2 DIGCTL Status Register (HW_DIGCTL_STATUS)
The DIGCTL Status Register provides a read-only view to various input conditions and
internal states.
HW_DIGCTL_STATUS: 0x010
HW_DIGCTL_STATUS_SET: 0x014
HW_DIGCTL_STATUS_CLR: 0x018
HW_DIGCTL_STATUS_TOG: 0x01C
EXAMPLE
1364
USB0_CLKGATE
JTAG_SHIELD
ENTROPY
LATCH_
Field
2
1
0
if(HW_DIGCTL_STATUS.PACKAGE_TYPE)
{
}
// do 100-pin package things
This bit must be cleared to 0 for normal operation of the USB controller. When set to 1, it gates off the
clocks to the USB controller. USB_CLKGATE can be set during suspend to gate the USB clock during
suspend. If this is gated, then the USB controller Reset Received bit (HW_USBCTRL_USBSTS_URI)
should be not be polled for reset during suspend; use the HW_USBPHY_CTRL_RESUME_IRQ bit instead.
This bit can be hardware auto cleared when wakeup from suspend happens
0x0
0x1
0 = The JTAG debugger is enabled.
1 = The JTAG debugger is disabled.
0x0
0x1
Setting this bit latches the current value of the entropy register into HW_DIGCTL_ENTROPY_VALUE. This
can be used get a stable value on players that do not deassert the PSWITCH while powered up.
i.MX28 Applications Processor Reference Manual, Rev. 1, 2010
RUN — Allow USB to operate normally.
NO_CLKS — Do not clock USB gates in order to minimize power consumption.
NORMAL — JTAG debugger enabled.
SHIELDS_UP — JTAG debugger disabled.
HW_DIGCTL_CTRL field descriptions (continued)
Description
Freescale Semiconductor, Inc.