11 s_wrsr (warm reset status register) – NEC Network Controller uPD98502 User Manual

Page 198

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CHAPTER 3 SYSTEM CONTROLLER

198

Preliminary User’s Manual S15543EJ1V0UM

3.2.11 S_WRSR (Warm Reset Status Register)

The warm reset status register “S_WRSR” is a read-only and 32-bit word-aligned register. S_WRSR indicates the

response from USB Controller, Ethernet Controller, ATM Cell Processor, UART, and PCI Controller independently.

S_WRSR is initialized to 0 at reset and contains the following fields:

Bits

Field

R/W

Default

Description

31:6

Reserved

R

0

Hardwired to 0.

5

PCIWRST

R

0

Indicates warm reset status from PCI Controller:

0 = PCI Controller is busy to perform the warm reset.

1 = warm reset has been done. PCI Controller is ready.

4

UARTWRST

R

0

Indicates warm reset status from UART:

0 = UART is busy to perform the warm reset.

1 = warm reset has been done. UART is ready.

3

MAC2WRST

R

0

Indicates warm reset status from Ethernet Controller #2:

0 = Ethernet Controller #2 is busy to perform the warm reset.

1 = warm reset has been done. MAC Ethernet Controller #2 is ready.

2

ATMWRST

R

0

Indicates warm reset status from ATM Cell Processor:

0 = ATM Cell Processor is busy to perform the warm reset.

1 = warm reset has been done. ATM Cell Processor is ready.

1

MACWRST

R

0

Indicates warm reset status from Ethernet Controller #1:

0 = Ethernet Controller #1 is busy to perform the warm reset.

1 = warm reset has been done. MAC Ethernet Controller #1 is ready.

0

USBWRST

R

0

Indicates warm reset status from USB Controller:

0 = USB Controller is busy to perform the warm reset.

1 = warm reset has been done. USB Controller is ready.

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