參數(shù)資料
型號(hào)： C3ENPB0-DS
英文描述： 4 Mbit (512 Kbit x 8) ZEROPOWER® SRAM
中文描述： ? - 3E的網(wǎng)絡(luò)處理器的數(shù)據(jù)資料硅修訂買0
文件頁數(shù)： 41/114頁
文件大?。?/td> 1893K
代理商： C3ENPB0-DS
Pin Descriptions Grouped by Function
41
MOTOROLA GENERAL BUSINESS INFORMATION
C3ENPA1-DS/D REV 03
SONET OC-12 Transceiver Interface Configuration
SONET Optical Carrier (OC) 12 is implemented by using one cluster of CPs. At any time, a
CP within a cluster spends half its time performing receive functions, and the other half
performing transmit functions.
Table 14
shows a CP Cluster configured for one OC-12
interface.
Table 14
OC-12 Signals Example
SIGNAL NAME*
PIN #
TOTAL
TYPE
I/O
LABEL
SIGNAL DESCRIPTION
CP
n
_0
Table 7
1
LVTTL
O
PD
TCLK
Deskewed Transmit Clock (77.76MHz). This clock is used to
synchronize the transmit data.
CP
n
_1
Table 7
1
LVTTL
I
PU
TCLKI
Transceiver Transmit Clock. This clock sets the frequency of the
transmit data and is typically sourced by the PHY chip.
CP
n
_2
Table 7
1
LVTTL
O
PD
O
PU
O
PD
O
PU
O
PU
nc
PD
nc
PU
O
PD
O
PU
O
PD
O
PU
nc
PU
nc
PD
I
PU
I
PD
I
PU
I
PD
I
PU
I
PU
TXD(0)
Transmit Data (byte-wide data, least significant bit)
CP
n
_3
Table 7
1
LVTTL
TXD(1)
Transmit Data
CP
n
_4
Table 7
1
LVTTL
TXD(2)
Transmit Data
CP
n
_5
Table 7
1
LVTTL
TXD(3)
Transmit Data
CP
n
_6
Table 7
1
LVTTL
00F
Out of Frame
CP
n+1
_0
Table 7
1
nc
nc
nc
CP
n+1
_1
Table 7
1
nc
nc
nc
CP
n+1
_2
Table 7
1
LVTTL
TXD(4)
Transmit Data
CP
n+1
_3
Table 7
1
LVTTL
TXD(5)
Transmit Data
CP
n+1
_4
Table 7
1
LVTTL
TXD(6)
Transmit Data
CP
n+1
_5
Table 7
1
LVTTL
TXD(7)
Transmit Data (byte-wide data, most significant bit)
CP
n+1
_6
Table 7
1
nc
nc
nc
CP
n+2
_0
Table 7
1
nc
nc
nc
CP
n+2
_1
Table 7
1
LVTTL
RCLK
Receive Clock (77.76MHz)
CP
n+2
_2
Table 7
1
LVTTL
RXD(0)
Receive Data (byte-wide receive data, least significant bit)
CP
n+2
_3
Table 7
1
LVTTL
RXD(1)
Receive Data
CP
n+2
_4
Table 7
1
LVTTL
RXD(2)
Receive Data
CP
n+2
_5
Table 7
1
LVTTL
RXD(3)
Receive Data
CP
n+2
_6
Table 7
1
LVTTL
FP
Frame Synchronization Pulse. This is valid during the third A2 of
the receive SONET frame.
CP
n+3
_0
Table 7
1
nc
nc
PD
nc
nc
F
n
.
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