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Chapter 7: Interlaken PHY IP Core 7–13
Register Interface and Register Descriptions
November 2012 Altera Corporation Altera Transceiver PHY IP Core
User Guide
Table 710 specifies the registers that you can access using the Avalon-MM PHY
management interface using word addresses and a 32-bit embedded processor. A
single address space provides access to all registers. Writing to reserved or undefined
register addresses may have undefined side effects.
1 All undefined register bits are reserved.
phy_mgmt_writedata[31:0]
Input Input data.
phy_mgmt_readdata[31:0]
Output Output data.
phy_mgmt_write
Input Write signal.
phy_mgmt_read
Input Read signal.
phy_mgmt_waitrequest
Output
When asserted, indicates that the Avalon-MM slave interface is unable
to respond to a read or write request. When asserted, control signals
to the Avalon-MM slave interface must remain constant.
Table 7–9. Avalon-MM PCS Management Interface (Part 2 of 2)
Signal Name Direction Description
Table 7–10. Interlaken PHY Registers (Part 1 of 3)
Word
Addr
Bits R/W Register Name Description
PMA Common Control and Status Registers
0x022 [<p>-1:0] RO
pma_tx_pll_is_locked
If <p> is the PLL number, Bit[<p>] indicates that the TX
CMU PLL (<p>) is locked to the input reference clock. There
is typically one
pma_tx_pll_is_locked
bit per system.
Reset Control Registers–Automatic Reset Controller
0x041 [31:0] RW
reset_ch_bitmask
Reset controller channel bitmask for digital resets. The
default value is all 1s. Channel <
n
> can be reset when
bit<
n
> = 1. Channel <
n
> cannot be reset when bit<
n
> = 0.
The Interlaken PHY IP requires the use of the embedded
reset controller to initiate the correct the reset sequence. A
hard reset to
phy_mgmt_clk_reset
and
mgmt_rst_reset
is required for Interlaken PHY IP.
Altera does not recommend use of a soft reset or the use of
these reset register bits for Interlaken PHY IP.
0x042 [1:0]
WO
reset_control
(write)
Writing a 1 to bit 0 initiates a TX digital reset using the reset
controller module. The reset affects channels enabled in the
reset_ch_bitmask. Writing a 1 to bit 1 initiates a RX
digital reset of channels enabled in the
reset_ch_bitmask.
RO
reset_status
(read)
Reading bit 0 returns the status of the reset controller TX
ready bit. Reading bit 1 returns the status of the reset
controller RX ready bit.
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