参数资料
型号: MPC8272ADS
厂商: Freescale Semiconductor
文件页数: 108/158页
文件大小: 0K
描述: KIT DEVELOPMENT MPC8272
标准包装: 1
类型: MPU
适用于相关产品: MPC8272
所含物品:
Interconnect Signals
Table 8-4. P1—CPM Expansion Connector (continued)
Pin No.
D16
Signal Name
FETH2TXCK (PC16)
Attribute
I/O, T.S.
Description
Fast-Ethernet 2 Transmit Clock. When the Ethernet port is
enabled, this clock (25 MHz for 100 Mbps, 2.5 MHz for 10 Mbps)
is normally extracted from the received data and driven to the
PowerQUICC II to qualify out coming transmit data. In Slave mode
(not used with this application) this clock should be input to the
DM9161.
When the Ethernet port is disabled, this line is tristated and may be
used for any available function of PC16
D17
D18
PC15
PC14
D19
PC13
I/O, T.S.
PowerQUICC II’s Port C 13 Parallel I/O line. May be used to any
of its available functions.
D20
PC12
D21
USBRP (PC11)
USB RP Line. When the USB port is enabled, this line is connected
to the receive positive line of the USB tranceiver. When this port is
disabled, this signal is tristated and may be used for any available
function of PC11.
D22
FETHMDC (PC19)
I/O, T.S.
Fast-Ethernet Port Management Data Clock. This slow clock (S/W
generated) qualifies the management data I/O to read / write the
DM9161’s internal registers.
When the Ethernet port is disabled, this line may be used for any
available function of PC19.
D23
FETHMDIO (PC18)
I/O, T.S.
Fast-Ethernet Port Management Data I/O. This signal serves as
bidirectional serial data line, qualified by FETHMDC, to allow read
/ write the DM9161’s internal registers.
When the Ethernet port is disabled, this line may be used for any
available function of PC18.
D24
D25
D26
D27
D28
D29
USBRN (PC10)
PC7
PC6
PC5
PC4
USB RN Line. When the USB port is enabled, this line is
connected to the receive negative line of the USB tranceiver.
When this port is disabled, this signal is tristated and may be used
for any available function of PC10.
D30
RS_CD2# (PC8)
I/O, T.S.
RS232 Port 2 Carrier Detect (L). Connected via RS232 transceiver
to RS232 DTR2# input, allowing detection of a connected terminal
to this port. This line is simply a PI/O input line to the PowerQUICC
II.
When RS232 Port 2 is disabled, this line is tristated and may be
used for any available function of PC8.
MPC8272ADS User Guide
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