cp3ub26 National Semiconductor Corporation, cp3ub26 Datasheet - Page 88

cp3ub26

Manufacturer Part Number

cp3ub26

Description

Reprogrammable Connectivity Processor With Usb And Can Interfaces

Manufacturer

National Semiconductor Corporation

Datasheet

1.CP3UB26.pdf (270 pages)

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Name

EPC0

EPC1

EPC2

EPC3

EPC4

EPC5

EPC6

TXC0

TXC1

TXC2

TXC3

TXD0

TXD1

TXD2

TXD3

RXS0

RXS1

RXS2

TXS0

TXS1

TXS2

TXS3

Table 37 USB Controller Registers

FF FDDE8h

FF FDCCh

FF FDDCh

FF FDECh

FF FDC0h

FF FDD0h

FF FDD8h

FF FDC4h

FF FDD4h

FF FDE4h

FF FDC6h

FF FDE6h

FF FDC2h

FF FDD2h

FF FDE0h

FF FDF0h

FF FDF8h

FF FDF4h

FF FDF6h

FF FDE2h

FF FDF2h

FF FDD6

Address

Transmit Command 0

Transmit Command 1

Transmit Command 2

Transmit Command 3

Endpoint Control 0

Endpoint Control 1

Endpoint Control 2

Endpoint Control 3

Endpoint Control 4

Endpoint Control 5

Endpoint Control 6

Transmit Status 0

Transmit Status 1

Transmit Status 2

Transmit Status 3

Receive Status 0

Receive Status 1

Receive Status 2

Transmit Data 0

Transmit Data 1

Transmit Data 2

Transmit Data 3

Description

17.3.1

The MCNTRL register controls the main functions of the

CR16 USB node. The MCNTRL register provides read/write

access from the CPU bus. Reserved bits must be written

with 0, and they return 0 when read. It is clear after reset.

USBEN

Name

RXS3

RXC0

RXC1

RXC2

RXC3

RXD0

RXD1

RXD2

RXD3

Reserved

Main Control Register (MCNTRL)

Table 37 USB Controller Registers

The USB Enable controls whether the USB

module is enabled. If the USB module is dis-

abled, the 48 MHz clock within the USB node

is stopped, all USB registers are initialized to

their reset state, and the USB transceiver forc-

es SE0 on the bus to prevent the hub from de-

tected the USB node. The USBEN bit is clear

after reset.

0 – The USB module is disabled.

1 – The USB module is enabled.

FF FDCEh

FF FDDEh

FF FDCAh

FF FDFCh

FF FDEEh

FF FDFEh

FF FDDAh

FF FDEAh

FF FDFAh

Address

NAT

Receive Command 0

Receive Command 1

Receive Command 2

Receive Command 3

Reserved

Receive Status 3

Receive Data 0

Receive Data 2

Receive Data 3

Description

USBEN

cp3ub26 National Semiconductor Corporation, cp3ub26 Datasheet - Page 88

cp3ub26

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