MCIMX281AVM4B Freescale Semiconductor, MCIMX281AVM4B Datasheet - Page 1790

• 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
Address:
Re-
28.4.7 PWM Channel 2 Period Register (HW_PWM_PERIOD2)
The PWM Channel 2 Period Register specifies the multi-chip attachment mode, clock
divider value, active high, low values and period.
HW_PWM_PERIOD2: 0x060
HW_PWM_PERIOD2_SET: 0x064
HW_PWM_PERIOD2_CLR: 0x068
HW_PWM_PERIOD2_TOG: 0x06C
EXAMPLE
HW_PWM_PERIODn_WR(2, 0x00000b1f);
Address:
1790
set
Reset
Bit
W
R
INACTIVE
Bit
31
W
0
R
ACTIVE
31 16
Field
15 0
30
0
31
0
29
0
HW_PWM_PERIOD2
HW_PWM_ACTIVE2
28
0
30
0
Number of divided clock cycles to count from the beginning of the period before changing the output from
the active state to the inactive state. The internal count of the channel is compared for greater than this
value to change to the inactive state.
Number of divided clock cycles to count from the beginning of the period before changing the output to the
active state. The internal count of the channel is compared for greater than this value to change to the active
state.
27
0
RSRVD2
26
0
29
0
i.MX28 Applications Processor Reference Manual, Rev. 1, 2010
25
0
INACTIVE
24
0
28
0
23
0
HW_PWM_ACTIVE2 field descriptions
8006_4000h base + 50h offset = 8006_4050h
8006_4000h base + 60h offset = 8006_4060h
22
0
27
0
21
0
20
0
26
0
// Set up period and active/inactive output states
19
0
18
25
0
0
17
0
16
24
0
0
15
0
Description
23
14
0
0
13
0
22
12
0
0
11
0
CDIV
21
0
10
0
0
9
ACTIVE
20
0
0
8
Freescale Semiconductor, Inc.
0
7
INACTIVE_
19
0
STATE
0
6
0
5
18
0
0
4
3
0
17
ACTIVE_
0
STATE
0
2
0
1
16
0
0
0