MSC8103 Freescale Semiconductor / Motorola, MSC8103 Datasheet - Page 25

• Manufacturer Part Number: MSC8103
• Description: Network Digital Signal Processor
• Manufacturer: Freescale Semiconductor / Motorola

1.6.2
Freescale Semiconductor
Purpose I/O
Purpose I/O
General-
General-
PB31
PB30
PB29
PA7
PA6
Port B Signals
SMC2: SMSYN
SI1 TDMA1: L1TSYNC
TDM nibble and TDM serial
SI1 TDMA1: L1RSYNC
TDM nibble and TDM serial
FCC2: TX_ER
MII
SCC2: RXD
SI2 TDMB2: L1TXD
TDM serial
SCC2: TXD
FCC2: RX_DV
MII
SI2 TDMB2: L1RXD
TDM serial
FCC2: TX_EN
MII
SI2 TDMB2: L1RSYNC
TDM serial
Peripheral Controller:
Peripheral Controller:
Name
Name
Dedicated Signal
Dedicated I/O
Protocol
Protocol
MSC8103 Network Digital Signal Processor, Rev. 12
Table 1-7.
Table 1-8.
Dedicated
Dedicated
Direction
Direction
I/O Data
I/O Data
Output
Output
Output
Output
Input
Input
Input
Input
Input
Input
Input
Port A Signals (Continued)
SMC2: Serial Management Synchronization
The SMC interface consists of SMTXD, SMRXD, SMSYN, and a clock.
Not all signals are used for all applications. SMCs are full-duplex ports
that supports three protocols or modes: UART, transparent, or general-
circuit interface (GCI).
Time-Division Multiplexing A1: Layer 1 Transmit Synchronization
The synchronizing signal for the transmit channel. See the Serial
Interface with time-slot assigner chapter in the MSC8103 Reference
Manual.
Time-Division Multiplexing A1: Layer 1 Receive Synchronization.
The synchronizing signal for the receive channel.
FCC2: Media Independent Interface Transmit Error
Asserted by the MSC8103 to force propagation of transmit errors.
SCC2: Receive Data
SCC2 receives serial data from RXD.
Time-Division Multiplexing B2: Layer 1 Transmit Data
TDMB2 transmits serial data out of L1TXD.
SCC2: Transmit Data.
SCC2 transmits serial data out of TXD.
FCC2: Media Independent Interface Receive Data Valid
Asserted by an external fast Ethernet PHY to indicate that valid data is
being sent. The presence of carrier sense, but not RX_DV, indicates
reception of broken packet headers, probably due to bad wiring or a bad
circuit.
Time-Division Multiplexing B2: Layer 1 Receive Data
TDMB2 receives serial data from L1RXD.
FCC2: Media Independent Interface Transmit Enable
Asserted by the MSC8103 when transmitting data.
Time-Division Multiplexing B2: Layer 1 Receive Synchronization
The synchronizing signal for the receive channel.
Port B Signals
Description
Description
CPM Ports
1-21