MCIMX286CVM4B Freescale Semiconductor, MCIMX286CVM4B Datasheet - Page 2205

• Manufacturer Part Number: MCIMX286CVM4B
• Description: IC MPU I.MX286 289MAPBGA
• Manufacturer: Freescale Semiconductor
• Series: i.MX28r

Specifications of MCIMX286CVM4B

• 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: Compliant

1. HW_CLKCTRL_SAIF_DIV_FRAC_EN=1
2. Average elapsed time between each DIV adjustment to maintain audio within ± 20 ms of sample rate.
BITCLK is used to launch or capture each bit of the serial PCM data, while LRCLK clocks
the individual left/right samples (transitions at every sample boundary). For transmit,
BITCLK and LRCLK are always driven by the SAIF. However, there are two different
clocking modes for receive. In master mode, the SAIF drives both BITCLK and LRCLK,
Freescale Semiconductor, Inc.
Sample
48000
44100
32000
24000
22050
16000
12000
11025
8000
Rate
(Hz)
Multiplier
sample
Over-
Base
Rate
512
384
512
384
512
384
512
384
512
384
512
384
512
384
512
384
512
384
22.5792
16.9344
11.2896
saif_clk
24.576
18.432
16.384
12.288
12.288
8.4672
5.6448
4.2336
quired
(MHz)
9.216
8.192
6.144
6.144
4.608
4.096
3.072
Re-
i.MX28 Applications Processor Reference Manual, Rev. 1, 2010
0.0512000000
0.0384000000
0.0470400000
0.0352800000
0.0341333333
0.0256000000
0.0256000000
0.0192000000
0.0235200000
0.0176400000
0.0170666667
0.0128000000
0.0128000000
0.0096000000
0.0117600000
0.0088200000
0.0085333333
0.0064000000
Fractional
Desired
Divisor
0.0511932373
0.0384063721
0.0470428467
0.0352783203
0.0341339111
0.0256042480
0.0256042480
0.0191955566
0.0235137939
0.0176391602
0.0170593262
0.0128021240
0.0128021240
0.0095977783
0.0117645264
0.0088195801
0.0085296631
0.0063934326
Fractional
Closest
Divisor
Actual
0000110100011011
0000100111010101
0000110000001011
0000100100001000
0000100010111101
0000011010001110
0000011010001110
0000010011101010
0000011000000101
0000010010000100
0000010001011110
0000001101000111
0000001101000111
0000001001110101
0000001100000011
0000001001000010
0000001000101111
0000000110100011
DIV Binary Value
Chapter 35 Serial Audio Interface (SAIF)
0x0D1B
0x09D5
0x0C0B
0x08BD
0x04EA
0x068E
0x068E
0x045E
0x022F
0x01A3
0x0908
0x0605
0x0484
0x0347
0x0347
0x0275
0x0303
0x0242
Value
Hex
DIV
1026.2
132.1
165.9
165.9
165.9
231.4
263.9
430.1
165.9
165.9
231.4
384.9
430.1
(ppm)
Error
60.5
47.6
16.9
47.6
47.6
< Actual
DIV Adjustment
151.4
420.1
420.1
420.1
(Notes
86.4
75.8
46.5
46.5
46.5
86.4
75.8
46.5
19.5
19.5
86.4
21.9
46.5
19.5
DIV
Frequency
(seconds)
1
> Actual
and
1181.5
120.5
120.5
330.5
120.5
120.5
120.5
120.5
52.0
35.5
52.0
24.5
43.1
14.7
52.0
11.9
14.7
14.7
DIV
2205
2
)