参数资料
型号: MC92603VF
厂商: Freescale Semiconductor
文件页数: 89/126页
文件大小: 0K
描述: IC TXRX ETH QUAD GIG 256-MAPBGA
标准包装: 1
类型: 收发器
驱动器/接收器数: 4/4
规程: 千兆位以太网
电源电压: 4.5 V ~ 5.5 V
安装类型: 表面贴装
封装/外壳: 256-LBGA
供应商设备封装: 256-MAPBGA
包装: 托盘
Management Interface (MDIO)
MC92603 Quad Gigabit Ethernet Transceiver Reference Manual, Rev. 1
Freescale Semiconductor
4-9
4.2.9
MDIO RA 16 (Vendor Specific)—Permanent Configuration Control
Register
MDIO RA 16 is vendor specific and contains the MC92603 permanent configuration control register.
These bits are initially loaded from the states of the corresponding configuration input pins. They may be
modified through the MDIO interface, but if they are written through this interface, the logic within the
MC92603 is reset, and normal operations will be interrupted until individual channels are resynchronized.
Figure 4-8 shows the content of register 16.
NOTE
Only one copy of this register exists within GEt. It may be accessed through
any of the four channels, but if modified it affects operation of all four
channels.
Table 4-6 lists the corresponding field descriptions for the permanent configuration register.
15
14
13
12
11
10
9
8
R
xmit_ref_a
recv_ref_a
tbie
bsync
compat
rcce
repe
wsync1
W
Reset XMIT_REF_A
RECV_REF_A
TBIE
BSYNC
COMPAT
RCCE
REPE
WSYNC1
7
6
5
4
3
2
1
0
R
wsync0
jpack
adie
tst_1
tst_0
lboe
use_short_
an_timer
ddr
W
Reset
WSYNC0
JPACK
ADIE
TST_1
TST_0
LBOE
0
DDR
Figure 4-8. Permanent Configuration Control Register (MDIO RA 16)
Table 4-6. Permanent Configuration Control Register
Field Descriptions
Bits
Name
Description1
15
xmit_ref_a_reg
Initialized to the value on the XMIT_REF_A input. If set, indicates that all transmit data into the
transmitter is synchronous with channel A’s transmit clock (XMIT_A_CLK). (R/W)
14
recv_ref_a_reg
Initialized to the value on the RECV_REF_A input. If set, indicates that all receive data out of
the receiver is synchronous with channel A’s recovered clock (RECV_A_RCLK). (R/W)
13
tbie_reg
Initialized to the value on the TBIE input. If set, indicates that data into the transmitter and out
of the receiver is to be treated as ten-bit coded data. (R/W)
12
bsync_reg
Initialized to the value on the BSYNC input. If set, indicates that data out of the receiver is to be
byte aligned using COMMA code groups. (R/W)
11
compat_reg
Initialized to the value on the COMPAT input. If set, indicates that if context sensitive, data will
be dropped or repeated to prevent overrun/underrun. See Chapter 5, “System Design
for an explanation. (R/W)
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