Cirrus-logic EP93xx Manual de usuario Pagina 154

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5-28 DS785UM1
Copyright 2007 Cirrus Logic
System Controller
EP93xx User’s Guide
5
5
5
A1onG: I
2
S Audio Port 1 on GPIO.
1 - I
2
S Port 1 pins are mapped to EGPIO. SDI1 is on
EGPIO[5], SDO1 is on EGPIO[4].
0 - EGPIO[5:4] are not used.
A2onG: I
2
S Audio Port 2 on GPIO.
1 - I
2
S Port 2 pins are mapped to EGPIO. SDI2 is on
EGPIO[13], SDO2 is on EGPIO[6].
0 - EGPIO[13] and EGPIO[6] are not used.
CPENA: Co-processor Enable.
1 - MaverickCrunch co-processor is enabled.
0 - Co-processor is disabled and will not accept
instructions.
U3EN: UART3 Enable.
1 - UART3 baud rate clock is active.
0 - UART3 clock is off.
MonG: Modem on GPIO.
1 - Modem support signals use EGPIO[0] pins.
0 - Modem support signals do not use EGPIO[0] pins
TonG: TENn on GPIO. This bit has no effect unless HC3EN and
HC1EN are 0.
1 - UART3 TENn signal drives EGPIO[3].
0 - EGPIO[3] used by GPIO.
GonK: GPIO on Key Matrix.
1 - Key Matrix pins are configured for GPIO operation,
0 - Key Matrix pins are controlled by other options.
The GonK has precedence over the Key Matrix controller.
The SPI0, when mapped to Key Matrix pins, has
precedence over GPIO. When the Key Matrix pins are
configured for SPI0, the pins unused by SPI0 can be used
for GPIO.
IonU2: IrDA on UART2.
1 - UART2 is used as an IrDA interface,
0 - UART2 is a normal UART.
D0onG: External DMA0 hardware handshake signals mapped to
EGPIO pins.
1 - Signals mapped.
0 - Signals not supported.
D1onG: External DMA1 hardware handshake signals mapped to
EGPIO pins.
1 - Signals mapped.
0 - Signals not supported.
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