MAX14644ETA+T Maxim Integrated, MAX14644ETA+T Datasheet - Page 16

• Manufacturer Part Number: MAX14644ETA+T
• Description: USB Interface IC USB Host Adapter Emulator
• Manufacturer: Maxim Integrated

Specifications of MAX14644ETA+T

• Rohs: yes

The MAX14640–MAX14644/MAX14651 feature a pass-
through mode with CDP emulation (CM). This is to sup-
port the higher charging current capability during the
pass-through mode in normal USB operation (S0 state).
Table 7. USB Host Power States
FUO = Factory Use Only. Do not change from POR values.
RFU = Reserved for Future Use. Do not change from POR values.
*Applies to the MAX14640; the MAX14651 POR is 0x20.
Maxim Integrated
REGISTER
DeviceID
Control1
Control2
Control3
Control4
Control5
INT
STATUS
MASK
STATE
S0
S1
S2
S3
S4
S5
ADDR
System On
Power to the CPU(s) and RAM is Maintained. Devices that do not indicate that they must remain on, may be powered
down.
CPU is Powered Off
Standby (Suspend to Ram)—System Memory Context is Maintained. All other system context is lost.
Hibernate—Platform Context is Maintained
Soft Off
0x00
0x01
0x02
0x03
0x04
0x05
0x06
0x07
0x08
USB Pass-Through Mode with CDP
TYPE
R/W
R/W
R/W
R/W
R/W
R/W
R
R
R
0x10*
0x7B
POR
0x87
0x50
0xE9
0x00
0x00
0x00
0x00
CDP_DEVm BYPASS_CDPm CDP_CNm
CDP_DEVs
LOW_PWR
CDP_DEVi
INT_EN
BIT7
FUO
RFU
CEN_CNT[1:0]
MAX14640–MAX14644/MAX14651
BYPASS_CDPs
BYPASS_CDPi
Emulation
BIT6
FUO
FUO
RFU
CHIPID[3:0]
USB_SW[1:0]
USB Host Adapter Emulators
CDP_CNs
CDP_CNi
DESCRIPTION
BIT5
FUO
FUO
RFU
Register Map/Register Descriptions
The peripheral device equipped with CDP detection
capability can draw a charging current as defined in
USB battery charger specification 1.2 when the charg-
ing host supports the CDP mode. This is a useful feature
since most host USB transceivers do not have the CDP
function.
CEN_DEL[2:0]
CEN_OUT
BIT4
FUO
FUO
RFU
RFU
RFU
RFU
Table 7
USB_XFRm
USB_XFRs
CEN_POL
USB_XFRi
BIT3
FUO
FUO
RFU
summarizes the USB host power states.
RWUm
RWUs
RWUi
BIT2
FUO
FUO
FUO
RFU
CHIPREV[3:0]
CEN_TOG_STm CEN_TOG_SPm
CEN_TOG_STi
RWU_DFT
DIS_CDP
MODE_SEL[2:0]
BIT1
FUO
RFU
RFU
CEN_TOG_SPs
CEN_TOG_SPi
RWU_LS
BIT0
FUO
FUO
RFU
16