LPC47M142-NC Standard Microsystems (SMSC), LPC47M142-NC Datasheet - Page 156
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LPC47M142-NC
Manufacturer Part Number
LPC47M142-NC
Description
Manufacturer
Standard Microsystems (SMSC)
Datasheet
1.LPC47M142-NC.pdf
(205 pages)
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Note 1: CR22 bit 5 is reset on VTR only.
Note 2: The registers for the USB Hub are powered by VTR.
Note: Reserved registers are read-only, reads return 0.
Chip Level (Global) Control/Configuration Registers[0x00-0x2F]
The chip-level (global) registers lie in the address range [0x00-0x2F]. The design MUST use all 8 bits of the
ADDRESS Port for register selection. All unimplemented registers and bits ignore writes and return zero when read.
The INDEX PORT is used to select a configuration register in the chip. The DATA PORT is then used to access the
selected register. These registers are accessible only in the Configuration Mode.
SMSC DS – LPC47M14X
0x30
0xF0
0xF1
0xF2
0xF3
0xF4
0xF5
0xF6
0xF7
Config Control
Default = 0x00
on VCC POR,
VTR POR and
HARD RESET
Logical Device #
Default = 0x00
on VCC POR,
VTR POR,
SOFT RESET and
HARD RESET
Card Level Reserved 0x08 - 0x1F Reserved - Writes are ignored, reads return 0 .
REGISTER
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
LOGICAL DEVICE C CONFIGURATION REGISTERS (USB Hub)
0x00
-
-
-
-
-
-
-
-
0x03 - 0x06 Reserved - Writes are ignored, reads return 0 .
ADDRESS
0x07 R/W
0x02 W
0x00 -
0x01
Table 62 – Chip Level Registers
Chip (Global) Control Registers
0x00
-
-
-
-
-
-
-
-
Reserved - Writes are ignored, reads return 0.
The hardware automatically clears this bit after the
write, there is no need for software to clear the bits.
Bit 0 = 1: Soft Reset. Refer to the "Configuration
Registers" table for the soft reset value for each
register.
A write to this register selects the current logical
device.
configuration registers for each logical device. Note:
The Activate command operates only on the selected
logical device.
This allows access to the control and
Page 156
0x00
0x00
0x24
0x04
0x40
0x01
0x00
0x00
0x00
DESCRIPTION
0x00
-
-
-
-
-
-
-
-
Activate (see Table 75)
(Note 2)
OSC_CLK (
IdVendor_Low (
IdVendor_High (
IdProduct_Low (
IdProduct_High (
BcdDevice_Low (
BcdDevice_High (
HubControl_1
Note 2
Notes 1 & 2
Notes 1 & 2
Notes 1 & 2
Notes 1 & 2
(
Notes 1 & 2
)
Notes 1 & 2
Notes 1 & 2
STATE
C
C
Rev. 03/19/2001
)
)
)
)
)
)
)
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