MCIMX286CVM4B Freescale Semiconductor, MCIMX286CVM4B Datasheet - Page 1757

• 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

27.5.4 I2C Timing Register 2 (HW_I2C_TIMING2)
The timing for various phases of I2C Controller Commands are further defined by fields in
the I2C Timing Register 2.
HW_I2C_TIMING2: 0x030
HW_I2C_TIMING2_SET: 0x034
HW_I2C_TIMING2_CLR: 0x038
HW_I2C_TIMING2_TOG: 0x03C
This register is primarily used for clock and timing generation.
EXAMPLE
HW_I2C_TIMING2_WR(0x0015000d); //
Address:
Re-
Freescale Semiconductor, Inc.
set
Bit
W
R
XMIT_COUNT
LOW_COUNT
BUS_FREE
31
0
RSVD2
RSVD1
RSVD2
31 26
25 16
15 10
31 26
25 16
Field
Field
9 0
30
0
RSVD2
29
0
HW_I2C_TIMING2
28
0
Always set this bit field to zero.
Load this bit field with the APBX clock count for the low period of the I2C clock.
Always set this bit field to zero.
Load this bit field with the APBX clock count for changing transmitted data after the I2C clock goes low. Set
this value to produce valid i2c setup and hold times at the desired bit rate for the current APBX clock rate.
Always set this bit field to zero.
Load this bit field with the APBX clock count for delaying the transition to the bus idle state after entering
stop state in the clock generator.
27
0
26
0
i.MX28 Applications Processor Reference Manual, Rev. 1, 2010
25
0
24
0
23
0
8005_8000h base + 30h offset = 8005_8030h
HW_I2C_TIMING1 field descriptions
HW_I2C_TIMING2 field descriptions
22
0
BUS_FREE
21
1
20
1
bus free count of 21 lead in count of 13
19
0
18
0
17
0
16
0
15
0
Description
Description
14
0
RSVD1
13
0
12
0
11
0
10
0
0
9
0
8
0
7
LEADIN_COUNT
Chapter 27 Inter IC (I2C)
0
6
1
5
1
4
3
0
0
2
0
1
1757
0
0