Ampro Corporation XTX 820 manual GNT0, VCC0, VCC1, Serirq, REQ0, AD1, AD3, AD5, AD7, AD8, Vccaaud

Chapter 3 Hardware

Pin #	Signal	Description
17	GNT0*	Grant 0 – Refer to pin 10 for more information.
18	NC	Not Connected (Reserved)
19	VCC0	+5 volts +/-%5
20	VCC1	+5 volts +/-%5
21	SERIRQ	Serial Interrupt Request – This signal is used to support the serial interrupt
		protocol.
22	REQ0*	Bus Request 0 – Refer to pin 9 for more information.
23	AD0	Address/Data bus 0 – These signals (AD31 – AD0) are multiplexed on the
		same PCI connector pins. During the address phase of a PCI cycle, AD31–
		AD0 contain a 32-bit address or other destination information. During the
		data phase, AD31 – AD0 contain data.
24	+3.3V	+3.3 volts +/-%5
25	AD1	Address/Data bus 1 – Refer to pin-23 for more information.
26	AD2	Address/Data bus 2 – Refer to pin-23 for more information.
27	AD4	Address/Data bus 4 – Refer to pin-23 for more information.
28	AD3	Address/Data bus 3 – Refer to pin-23 for more information.
29	AD6	Address/Data bus 6 – Refer to pin-23 for more information.
30	AD5	Address/Data bus 5 – Refer to pin-23 for more information.
31	CBE0*	PCI Bus Command/Byte Enable 0 – This signal line is one of four signal
		lines multiplexed on the same pins, so that during the address cycle, the
		command is defined and during the data cycle, the byte enable is defined.
32	AD7	Address/Data bus 7 – Refer to pin-23 for more information.
33	AD8	Address/Data bus 8 – Refer to pin-23 for more information.
34	AD9	Address/Data bus 9 – Refer to pin-23 for more information.
35	GND	Ground
36	GND	Ground
37	AD10	Address/Data bus 10 – Refer to pin-23 for more information.
38	AUXA_L	Auxiliary A Input Left – This signal is normally used for an external CD-
		ROM analog output or similar live-level audio source. Minimum input
		impedance is 5k Ohms and nominal input level is 1 volt RMS.
39	AD11	Address/Data bus 11 – Refer to pin-23 for more information.
40	MIC	Microphone reference signal – This microphone input signal has a minimum
		input impedance of 5k Ohms, and the maximum input voltage is 0.15 Vp-p.
41	AD12	Address/Data bus 12 – Refer to pin-23 for more information.
42	AUXA_R	Auxiliary A Input Right – This signal is normally used for an external CD-
		ROM analog output or similar live-level audio source. Minimum input
		impedance is 5k Ohms and nominal input level is 1 volt RMS.
43	AD13	Address/Data bus 13 – Refer to pin-23 for more information.
44	VCCA_AUD	Analog Supply Voltage – This test voltage is used for the sound controller,
		but is not available for customer use.
45	AD14	Address/Data bus 14 – Refer to pin-23 for more information.

46AOUT_L Stereo Line Output Left channel – This output signal has a nominal level of 1 volt RMS into 10k impedance load. This output signal can not drive low- impedance speakers directly.

26 Reference Manual XTX 820