Rainbow Electronics AT91CAP9S250A User Manual

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604

6264A–CAP–21-May-07

AT91CAP9S500A/AT91CAP9S250A

• FSOS: Transmit Frame Sync Output Selection

• FSDEN: Frame Sync Data Enable

0: The TD line is driven with the default value during the Transmit Frame Sync signal.

1: SSC_TSHR value is shifted out during the transmission of the Transmit Frame Sync signal.

• FSEDGE: Frame Sync Edge Detection

Determines which edge on frame sync will generate the interrupt TXSYN (Status Register).

• FSLEN_EXT: FSLEN Field Extension

Extends FSLEN field. For details, refer to FSLEN bit description on

FSOS

Selected Transmit Frame Sync Signal

TF Pin

0x0

None

Input-only

0x1

Negative Pulse

Output

0x2

Positive Pulse

Output

0x3

Driven Low during data transfer

Output

0x4

Driven High during data transfer

Output

0x5

Toggling at each start of data transfer

Output

0x6-0x7

Reserved

Undefined

FSEDGE

Frame Sync Edge Detection

0x0

Positive Edge Detection

0x1

Negative Edge Detection