ARM R4F, r1p3 manual AXI master port error detection signals, AXI slave port

Models: R4F r1p3 R4

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Processor Signal Descriptions

 

 

 

Table A-4 AXI master port signals for the L2 interface (continued)

 

 

 

 

 

Signal

Direction

Clocking

Description

 

 

 

 

 

 

ARUSERM[4:0]

Output

CLKIN

Provides decode information for the read address channel. See

 

 

 

 

Table 9-3 on page 9-5for information about the encoding of this

 

 

 

 

signal.

 

 

 

 

 

 

ARVALIDM

Output

CLKIN

Indicates address and control are valid.

 

 

 

 

Read Data Channel

 

 

 

 

RDATAM[63:0]

Input

CLKIN

Read Data.

 

 

 

 

 

 

RIDM[3:0]

Input

CLKIN

The identification tag for the read data group of signals.

 

 

 

 

 

 

RLASTM

Input

CLKIN

Indicates the last transfer in a read burst.

 

 

 

 

 

 

RREADYM

Output

CLKIN

Read ready signal indicating that the bus master can accept read

 

 

 

 

data and response information.

 

 

 

 

 

 

RRESPM[1:0]

Input

CLKIN

Read response.

 

 

 

 

 

 

RVALIDM

Input

CLKIN

Indicates that read data is available.

 

 

 

 

 

A.5.2 AXI master port error detection signals

Table A-5shows the AXI master port error detection signals. these signals are only generated if the processor is configured to include AXI bus parity. See Configurable options on page 1-13for more information.

 

 

 

Table A-5 AXI master port error detection signals

 

 

 

 

Signal

Direction

Clocking

Description

 

 

 

 

AWPARITYM

Output

CLKIN

Parity bit for write address channel

 

 

 

 

WPARITYM

Output

CLKIN

Parity bit for write data channel

 

 

 

 

BPARITYM

Input

CLKIN

Parity bit for write response channel

 

 

 

 

ARPARITYM

Output

CLKIN

Parity bit for read address channel

 

 

 

 

RPARITYM

Input

CLKIN

Parity bit for read data channel

 

 

 

 

AXIMPARERR[1:0]

Output

CLKIN

Parity error indication for read data (bit [1]) and write response

 

 

 

(bit[0]) channels

 

 

 

 

A.5.3 AXI slave port

Table A-6shows the AXI slave port signals for the L2 interface. With the exception of the ACLKENS, all signals are only sampled or driven on CLKIN edges when ACLKENS is asserted, see AXI interface clocking on page 3-9for more information.

 

 

 

Table A-6 AXI slave port signals for the L2 interface

 

 

 

 

Signal

Direction

Clocking

Description

 

 

 

 

ACLKENS

Input

CLKIN

Clock enable for the AXI slave port.

 

 

 

 

Write Address Channel

 

 

 

AWADDRS[22:0]

Input

CLKIN

Transfer start address.

ARM DDI 0363E

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Page 423
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ARM R4F, r1p3 manual AXI slave port, Table A-5 AXI master port error detection signals