LOGICAL DEVICE C CONFIGURATION REGISTERS (USB Hub)
0x30
R/W
0x00
0x00
0x00
0x00
Activate (see Table 75)
(Note 2)
0xF0
0xF1
0xF2
0xF3
0xF4
0xF5
0xF6
0xF7
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
0x00
0x24
0x04
0x40
0x01
0x00
0x00
0x00
-
-
-
-
-
-
-
-
OSC_CLK (Note 2)
IdVendor_Low (Notes 1 & 2 )
IdVendor_High (Notes 1 & 2 )
IdProduct_Low (Notes 1 & 2 )
IdProduct_High (Notes 1 & 2 )
BcdDevice_Low (Notes 1 & 2 )
BcdDevice_High (Notes 1 & 2 )
HubControl_1
(Notes 1 & 2 )
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.
Table 62 – Chip Level Registers
REGISTER
ADDRESS
DESCRIPTION
Chip (Global) Control Registers
STATE
0x00 -
0x01
0x02 W
Reserved - Writes are ignored, reads return 0.
Config Control
The hardware automatically clears this bit after the
write, there is no need for software to clear the bits.
C
Bit 0 = 1: Soft Reset. Refer to the "Configuration
Registers" table for the soft reset value for each
register.
Default = 0x00
on VCC POR,
VTR POR and
HARD RESET
0x03 - 0x06 Reserved - Writes are ignored, reads return 0.
Logical Device #
0x07 R/W A write to this register selects the current logical
device. This allows access to the control and
configuration registers for each logical device. Note:
The Activate command operates only on the selected
logical device.
C
Default = 0x00
on VCC POR,
VTR POR,
SOFT RESET and
HARD RESET
Card Level Reserved 0x08 - 0x1F Reserved - Writes are ignored, reads return 0.
SMSC DS – LPC47M14X
Page 156
Rev. 03/19/2001
SMSC [ SMSC CORPORATION ]
