MCIMX286CVM4B Freescale Semiconductor, MCIMX286CVM4B Datasheet - Page 936

• 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

Programmable Registers
11.12.14 Transistor Speed Control and Status Register
This register contains the setup and controls needed to measure silicon speed.
HW_POWER_SPEED: 0x0D0
HW_POWER_SPEED_SET: 0x0D4
HW_POWER_SPEED_CLR: 0x0D8
HW_POWER_SPEED_TOG: 0x0DC
Address:
936
Reset
Reset
STATUS_SEL
Bit
Bit
W
W
RSRVD1
RSRVD0
R
R
STATUS
31 24
CTRL
Field
23 8
7 6
5 2
1 0
31
15
0
0
HW_POWER_SPEED
30
14
0
0
(HW_POWER_SPEED)
Reserved.
Result from the speed sensor.This result is only valid when SPEEDCTRL=0b11; otherwise this field contains
debug information from the switching DC-DC converter.
Speed Sensor Status Select. This defines the meaning on the STATUS field in this register.
0x0
0x1
0x2
Reserved.
Speed Control bits. 00: Speed sensor off, 0b01: Speed sensor enabled, 11: Enable speed sensor
measurement. Every time a measurement is taken, the sequence of 0x00 ; 01 ; 11 must be repeated. This
sequence should proceed no faster than 1.5 MHz to ensure proper operation.
29
13
0
0
DCDC_STAT — DC-DC speed sensor (lower 8 bits)
CORE_STAT — core logic speed sensor
ARM_STAT — arm9 speed sensor
i.MX28 Applications Processor Reference Manual, Rev. 1, 2010
STATUS[15:8]
28
12
RSRVD1
0
0
HW_POWER_SPEED field descriptions
8004_4000h base + D0h offset = 8004_40D0h
27
11
0
0
26
10
0
0
25
0
0
9
24
0
0
8
Description
STATUS_SEL
23
0
0
7
22
0
0
6
21
0
5
0
STATUS[23:16]
20
RSRVD0
0
4
0
Freescale Semiconductor, Inc.
19
0
0
3
18
0
0
2
17
0
0
1
CTRL
16
0
0
0