MPC8540 datasheet(956/1302 Pages) FREESCALE

956 / 1302 page

MPC8540 PowerQUICC III Integrated Host Processor Reference Manual, Rev. 1

17-32

Freescale Semiconductor

RapidIO Interface

Table 17-29 describes the fields of the PESCSR.

131415

27 28

R 0 0 0 0 0 0 0 0 0 0 0

ORE

OR ORS

OEE

OES 0 0 0 0 0 IRS

IEE

IES 0 0 0 0 PP

PO PU

Reset

0000_0000_0000_0000_0000_0000_0000_0000

Offset

0xC_0158

Figure 17-25. Port Error and Status Command and Status Register (PESCSR)

Table 17-29. PESCSR Field Descriptions

Bits

Name

Description

0–10

—

Reserved

ORE

Output port retry condition

0 Output port operating normally

1 Output port encountered a retry condition. Set when ORS is set. (Bit reset, write-one-to-clear)

Output port retry (read-only field). (Bit reset, write-one-to-clear)

0 Output port received a packet-accepted or packet-not-accepted control symbol

1 Output port received a packet retry and cannot make forward progress. Set when ORS is set

ORS

Output port retry stop (read-only field)

0 Output port operating normally

1 Output port is stopped due to a retry

OEE

Output port error encounter. (Bit reset, write-one-to-clear)

0 Output port operating normally

1 Output port encountered an error. Set when OES is set

OES

Output port error stop (read-only field)

0 Output port operating normally

1 Output port is stopped due to a transmission error

16–20

—

Reserved

IRS

Input port retry stop (read-only field)

0 Input port operating normally

1 Input port is stopped due to a retry condition

IEE

Input port error encounter. (Bit reset, write-one-to-clear)

0 Input port operating normally

1 Input port encountered a transmission error. Set when IES is set

IES

Input port error stop (read-only field)

0 Input port operating normally

1 Input port is stopped due to a transmission error

24–27

—

Reserved

Input clock toggling (read-only field)

Note: Set shortly after reset, due to asynchronous interface crossing and clock detection delay

0 Input clock pin is not toggling

1 Input clock pin is toggling. (There is a device attached.)

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