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參數(shù)資料
| 型號(hào)： | MC92604ZT |
| 廠商： | Freescale Semiconductor |
| 文件頁(yè)數(shù)： | 45/122頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | IC TXRX ETH DUAL GIG 196-MAPBGA |
| 標(biāo)準(zhǔn)包裝： | 630 |
| 類型： | 收發(fā)器 |
| 驅(qū)動(dòng)器/接收器數(shù)： | 2/2 |
| 規(guī)程： | 千兆位以太網(wǎng) |
| 電源電壓： | 4.5 V ~ 5.5 V |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 196-LBGA |
| 供應(yīng)商設(shè)備封裝： | 196-MAPBGA（15x15） |
| 包裝： | 托盤 |
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Transmitter
MC92604 Dual Gigabit Ethernet Transceiver Reference Manual, Rev. 1
Freescale Semiconductor
2-7
The transmitter inputs, XMIT_x_7–XMIT_x_0, XMIT_x_K, XMIT_x_ERR, and XMIT_x_ENABLE are
ignored for the next 15 byte-times while this 16-code group sequence is transmitted.
Transmitting uncoded data in backplane applications with the reduced interface mode is shown in
Table 2-4. The transmitter functional operation is the same as discussed above, except the data is entered
on both edges of the transmitter input clock, XMIT_x_CLK.
The 8 bits of uncoded data are entered with the least significant nibble on the rising clock and the most
significant nibble on the falling clock edge.
NOTE
When operating with the reduced data interface the MC92604 input pins,
XMIT_x_7–XMIT_x_4, are unused and should be terminated low.
2.4.2
Transmitting Coded Data—10-/5-Bit Modes
This operating mode is specified when the TBIE input is high. The state of COMPAT input does not affect
the transmitter’s operation.
In this mode, 10-bit coded data may be transmitted, bypassing the internal 8B/10B encoder. The 10 bits of
data to transmit are presented on the XMIT_x_7–XMIT_x_0 inputs along with bits 9 and 8 on the
XMIT_x_ERR and XMIT_x_ENABLE inputs, respectively. The 10-bit coded data is transmitted as shown
in Table 2-5.
The XMIT_x_K signal is ignored by the transmitter in the backplane 10-/5-bit modes, but, it is used by the
receiver.
Table 2-4. Transmitter Inputs for Reduced Uncoded Data—Backplane Mode
Data on Rising Edge of XMIT_x_CLK
Data on Falling Edge of XMIT_x_CLK
MC92604 Signal Name
XMIT_x_ENABLE
XMIT_x_ENABLE (XOR) XMIT_x_ERR
XMIT_x_ENABLE
XMIT_x_K
Unused
XMIT_x_K
Data bits 3–0
Data bits 7–4
XMIT_x_3/XMIT_x_0
Table 2-5. Transmitter Input States for Coded Data (TBIE = High)
XMIT_x_K
XMIT_x_ERR
XMIT_x_ENABLE
XMIT_x_7–
XMIT_x_0
Description
Used by receiver
Data bit 9
Data bit 8
Data bits 7–0
Data bits 9–0
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