MNSC140CORE datasheet(28/88 Pages) FREESCALE

28 / 88 page

MSC8122 Technical Data, Rev. 13

1-18

Freescale Semiconductor

Signals/Connections

GPIO7

TDM3RCLK

IRQ5

ETHTXD3

Input/ Output

Input

Output

General-Purpose Input Output 7

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.

TDM3 Receive Clock

The receive clock signal for TDM 3. As an output, this can be the DATA_C data signal for TDM 3. For

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

Interrupt Request 5

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

SC140 core.

Ethernet Transmit Data 3

For MII mode only, bit 3 of the Ethernet transmit data.

GPIO8

TDM3RDAT

IRQ6

ETHCOL

Input/ Output

Input

General-Purpose Input Output 8

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.

TDM3 Serial Receiver Data

The receive data signal for TDM 3. As an input, this can be the DATA_A data signal for TDM 3. For

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

Interrupt Request 6

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

SC140 core.

Ethernet Collision

For MII mode only, indicates whether a collision was detected.

GPIO9

TDM2TSYN

IRQ7

ETHMDIO

Input/ Output

Input

Input/ Output

General-Purpose Input Output 9

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 Transmit frame Sync

Transmit Frame Sync for TDM 2.

Interrupt Request 7

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

SC140 core.

Ethernet Management Data

Station management data input/output line in MII, RMII, and SMII modes.

GPIO10

TDM2TCLK

IRQ8

ETHRX_DV

ETHCRS_DV

Input/ Output

Input

General-Purpose Input Output 10

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.

TDM 2 Transmit Clock

Transmit Clock for TDM 2.

Interrupt Request 8

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

SC140 core.

Ethernet Receive Data Valid

In MII mode, this signal indicates that the receive data is valid.

Ethernet Carrier Sense/Receive Data Valid

In RMII mode, this signal indicates that a carrier is sense or that the receive data is valid.

Not Connected

For SMII mode, this signal must be left unconnected.

Table 1-7.

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

Signal Name

Type

Description

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