MCIMX281AVM4B Freescale Semiconductor, MCIMX281AVM4B Datasheet - Page 880

• 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
10.8.19 CLK_DIS_LCDIF Clock Control Register
This register controls the divider that generates the CLK_DIS_LCDIF clock. Note: Do not
write register space when busy bit(s) are high.
EXAMPLE
HW_CLKCTRL_DIS_LCDIF_WR(BF_CLKCTRL_DIS_LCDIF_DIV(40));
Address:
880
Reset
Reset
DIV_FRAC_EN
CLKGATE
Bit
Bit
W
W
RSRVD2
RSRVD1
R
R
28 14
BUSY
Field
31
30
29
13
31
15
RSRVD1
1
0
[15:14]
HW_CLKCTRL_DIS_LCDIF
0120h
(HW_CLKCTRL_DIS_LCDIF)
30
14
0
0
CLK_DIS_LCDIF Gate. If set to 1, CLK_DIS_LCDIF is gated off. 0: CLK_DIS_LCDIF is not gated. When
this bit is modified, or when it is high, the DIV field should not change its value. The DIV field can change
ONLY when this clock gate bit field is low.
Always set to zero (0).
This read-only bit field returns a one when the clock divider is busy transfering a new divider value across
clock domains.
Always set to zero (0).
1 = Enable fractional divide. 0 = Enable integer divide.
BUSY
29
13
0
0
i.MX28 Applications Processor Reference Manual, Rev. 1, 2010
HW_CLKCTRL_DIS_LCDIF field descriptions
28
12
0
0
27
11
0
0
8004_0000h base + 120h offset = 8004_
26
10
0
0
25
0
0
9
24
0
0
8
Description
23
RSRVD1[28:16]
0
0
7
DIV
22
0
0
6
21
0
5
0
20
0
4
0
Freescale Semiconductor, Inc.
19
0
0
3
18
0
0
2
17
0
0
1
16
0
1
0