MCIMX281AVM4B Freescale Semiconductor, MCIMX281AVM4B Datasheet - Page 1510

• 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
23.4.1 Rotary Decoder Control Register (HW_TIMROT_ROTCTRL)
The Rotary Decoder Control Register specifies the reset state and the source selection for
the rotary decoder. In addition, it specifies the polarity of any external input source that is
used. This register also contains some general block controls including soft reset, clock
gate, and present bits.
HW_TIMROT_ROTCTRL: 0x000
HW_TIMROT_ROTCTRL_SET: 0x004
HW_TIMROT_ROTCTRL_CLR: 0x008
HW_TIMROT_ROTCTRL_TOG: 0x00C
EXAMPLE
HW_TIMROT_ROTCTRL_WR(0x00000076);
1510
8006_80C0
8006_80D0
8006_8090
8006_80A0
8006_80B0
8006_80E0
8006_80F0
8006_8100
8006_8110
8006_8120
Absolute
address
(hex)
Timer 1 Match Count Register
(HW_TIMROT_MATCH_COUNT1)
Timer 2 Control and Status Register
(HW_TIMROT_TIMCTRL2)
Timer 2 Runing Count Register
(HW_TIMROT_RUNNING_COUNT2)
Timer 2 Fixed Count Register
(HW_TIMROT_FIXED_COUNT2)
Timer 2 Match Count Register
(HW_TIMROT_MATCH_COUNT2)
Timer 3 Control and Status Register
(HW_TIMROT_TIMCTRL3)
Timer 3 Running Count Register
(HW_TIMROT_RUNNING_COUNT3)
Timer 3 Count Register (HW_TIMROT_FIXED_COUNT3)
Timer 3 Match Count Register
(HW_TIMROT_MATCH_COUNT3)
TIMROT Version Register (HW_TIMROT_VERSION)
i.MX28 Applications Processor Reference Manual, Rev. 1, 2010
HW_TIMROT memory map (continued)
Register name
// Set up rotary control fields.
(in bits)
Width
32
32
32
32
32
32
32
32
32
32
Access
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R
R
R
Freescale Semiconductor, Inc.
Reset value
0000_0000h
0000_0000h
0000_0000h
0000_0000h
0000_0000h
0000_0000h
0000_0000h
0000_0000h
0000_0000h
0200_0000h
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