MNSC140CORE datasheet(30/88 Pages) FREESCALE

30 / 88 page

MSC8122 Technical Data, Rev. 13

1-20

Freescale Semiconductor

Signals/Connections

GPIO14

TDM2RDAT

IRQ12

ETHRXD0

Input/ Output

Input

General-Purpose Input Output 14

One of 32 GPIO pins used as GPIO or as one of two dedicated inputs or one of two dedicated outputs. For

details, refer to the MSC8122 Reference Manual GPIO programming model.

TDM2 Serial Receiver Data

The receive data signal for TDM 2. As an input, this can be the DATA_A data signal for TDM 2. For

configuration details, refer to the MSC8122 Reference Manual chapter describing TDM operation.

Interrupt Request 12

One of fifteen external lines that can request a service routine, via the internal interrupt controller, from the

SC140 core.

Ethernet Receive Data 0

Bit 0 of the Ethernet receive data (MII and RMII).

Not Connected

For SMII mode, this signal must be left unconnected.

GPIO15

TDM1TSYN

DREQ1

Input/ Output

Input

General-Purpose Input Output 15

One of 32 GPIO pins used as GPIO or as one of two dedicated inputs or one of two dedicated outputs. For

details, refer to the MSC8122 Reference Manual GPIO programming model.

TDM1 Transmit frame Sync

Transmit Frame Sync for TDM 1.

DMA Request 1

Used by an external peripheral to request DMA service.

GPIO16

TDM1TCLK

DONE1

DRACK1

Input/ Output

Input

Input/ Output

Output

General-Purpose Input Output 16

One of 32 GPIO pins used as GPIO or as one of two dedicated inputs or one of two dedicated outputs. For

details, refer to the MSC8122 Reference Manual GPIO programming model.

TDM1 Transmit Clock

Transmit Clock for TDM 1.

DMA Done 1

Signifies that the channel must be terminated. If the DMA controller generates DONE, the channel

handling this peripheral is inactive. As an input to the DMA controller, DONE closes the channel much like

a normal channel closing.

See the MSC8122 Reference Manual chapters on DMA controller and GPIO for information on

configuring the DRACK or DONE mode and pin direction.

DMA Data Request Acknowledge 1

Asserted by the DMA controller to indicate that the DMA controller has sampled the peripheral request.

GPIO17

TDM1TDAT

DACK1

Input/ Output

Output

General-Purpose Input Output 17

One of 32 GPIO pins used as GPIO or as one of two dedicated inputs or one of two dedicated outputs. For

details, refer to the MSC8122 Reference Manual GPIO programming model.

TDM1 Serial Transmitter Data

The transmit data signal for TDM 1. As an output, this can be the DATA_D data signal for TDM 1.For

configuration details, refer to the MSC8122 Reference Manual chapter describing TDM operation.

DMA Acknowledge 1

The DMA controller drives this output to acknowledge the DMA transaction on the bus.

Table 1-7.

GPIO, TDM, UART, Ethernet, and Timer Signals (Continued)

Signal Name

Type

Description

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